G247 Fuel Pressure Sensor Help

[A4 Lad]

Hi there folks. I noticed that my 2.0 TFSI A4 has devoloped a 'stutter' or loss of power whn I am putting it under load in third, fourth, fifth or sixth gear, more noticable in third and forth when pulling out of a slip way onto a motor way etc.
I carried out a code read this evening and found the below fault :

Readiness: 0000 0100
Saturday,05,May,2012,19:38:10:19796
VCDS Version: Release 11.11.1 (x64)
Data version: 20111209

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Address 01: Engine Labels: 06F-907-115-AXX.lbl
Control Module Part Number: 8E0 910 115 Q HW: 8E0 907 115 D
Component and/or Version: 2.0l R4/4V TFSI 0030
Software Coding: 01040003180F0120
Work Shop Code: WSC 66565 257 00032
VCID: 2F6618D4BE066C1

004506 - Fuel Pressure Sensor (G247)
P119A - 001 - Malfunction
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 6
Mileage: 192316 km
Time Indication: 0

Freeze Frame:
RPM: 763 /min
Load: 13.3 %
Speed: 0.0 km/h
Temperature: 69.0°C
Temperature: 25.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.224 V

I have only spent a little time this evening on it and have erased the faults to see what reappears after driving it tomorrow again but I have never came across this fault before and have done a little Saturday night 'Googling' while me and the wife watched a crap movie and have found mixed opions from folk saying that its either a sensor on the fuel rail or the hpfp itself. My understanding from what I seen with the little time that I had spent on it tonight is that the fuel pump sensor that sits on top of the hpfp is working as I used VCDS to activate it and it clicked on and off and did not bring up any faults after activation.
Has anyone had any experiance with this fault ?
Thanks

[Crasher]

Replace the lift pump in the tank first, this is the cause most of the time.

[A4 Lad]

Thanks Crasher for the reply. In the tank itself ? I take it that is the sensor simply picking up on actual low pressure then ? Have you seen this before Crasher ? It had me thinking it was the sensor as it said 'malfunction' rather than 'out of spec' or 'too low' ?

[a8 tech]

I have all kinds of fun with this engine and the main four parts i replace for fuel pressure are
fuel filter (pressure valve built in)
fuel pressure limiting valve (I will send you a pm of its location)
pressure pump (in tank)
low pressure sensor (if it has the part number 06e 906 051k its the latest modified sensor)

The problem is if you use mvbs to check the rail pressure it rarely shows you its out as its tested at idle so if you can connect a inline pressure gauge and road test it

I found the pressure before the filter and after the filter is a critical test and you can check the delivery rate as well to make life easier on road test connect a amp clamp to the pump and you will see if the pump amperage spike's or not as well as how hard its working

So if its working its balls off and you have a low pressure reading then the supply is restricted (filter blocked) or weak pump

There is also a pump control unit to take into account but DONT GET ALL CONFUSED A PRESSURE TEST IS FAR MORE INFORMATIVE THAN ANY MVB VCDS READING

I have spent a lot of time dealing with fuel pressure problems and these are my findings, the main problems are blockage/restrictions for fuel on demand requirements

the limiting valve is a mechanical valve which blocks up (see your pm)

One other overlooked problem around 5000 rpm is the plugs

Also the injectors carbon up and create sporadic misfires, these misfires are compensated for and only possible to test with a scope

Misfire detection kicks in and suppressor the cylinder in question turning the spark off and balancing the other cylinders to smooth out the running

Reet off fishing no private work today lol

[A4 Lad]

Thanks A8 for the reply. I know it means nothing in this game these days but I replaced the spark plugs and the fuel filter with genuine Audi parts last year and have only done 3'000 miles ( she is only for the weekends lol ) and I have also had the coil packs replaced under the recall at the time so hopefully they are ruled out.
I assume that when you mean to test the pressure before and after the filter, you mean with some sort of gauge connected at the two said points ? I dont have a pressure gauge for fuel that would have the connectors that I would need as I have never needed it :(
To both Crasher and A8 ( after eating his Rainbow Trout :) ) : I know this is very novice of me to say but do you think that that I should buy the G247 sensor ( http://www.ebay.co.uk/itm/NEW-GENUINE-AUDI-VW-INTAKE-THRUST-SENSOR-06D-906-051-A-/400225125496?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5d2f46c478 ) and throw on a new limiting valve as its only £5 at the same time ( http://www.ebay.co.uk/itm/New-Genuine-VW-Pressure-Limiting-Valve-06D-130-757-C-/140320905180?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item20abc717dc ) and try them first ?
I know its more 'try and error' rather than a proper diagnostic approach but I dont have the gauges to test the pressure properly and by the time I buy them, it will cost me more money.

[A4 Lad]

O

[a8 tech]

The part numbers are in the link sent via pm fool.
You ok mate, take g247 off and check the part number to see if its the latest one
As for the fuel pressure and the new filter I have seen a few new filters fail as this filter also fits r8 I have replaced one 1 year after it was replaced for fuel contamination
Problem, poor warm starting int misfire
The pressure limiting valve is a pig to change (manifold off job) but its something I change now as a precaution and when to look inside you find its full of gunk
Might be coming off the spanners soon (not at the weekend though lol) workshop manager
As young crasher has said the pressure pumps can play up but take the pump out and remove the sieve, look for metallic bits showing signs of internal wear

measured values


Unified measured value blocks - petrol engines
2.0L T-FSI version 1.24


Breakdown of measured value blocks
001 - 009 ....... General representation of system status
010 - 019 ....... Ignition
020 - 029 ....... Knock control
030 - 049 ....... Lambda control / catalytic converter
050 - 059 ....... Speed control
060 - 069 ....... Throttle control
070 - 079 ....... Emissions reduction
080 - 089 ....... Special functions / Ready bits
090 - 097 ....... Power increase
098 - 100 ....... Compatibility blocks
101 - 109 ....... Fuel injection
110 - 119 ....... Load recording
120 - 129 ....... Communication between control units
130 - 139 ....... Cooling
170 ....... Starter control

Measured value block 001:
General
1)Engine speed [rpm]
2)Coolant temp. [°C]
3)Lambda control value bank 1[%]
4)Setting conditions for basic setting
1 2 3 4 5 6 7 8
X Coolant temp.>80°C -
X Engine speed<2000 rpm
X Throttle valve closed
X Lambda control OK
X Idling speed switch closed
X AC compressor off
X Cat. temp. reached
X No fault in system
(Condition met = 1; condition not met = 0)

Measured value block 002:
General (systems with one air mass meter)
1)Engine speed [rpm]
2)Load [%]
3)Mean injection time [ms]
4)Air mass [g/s]

Measured value block 003:
General (systems with one air mass meter)
1)Engine speed [rpm]
2)Air mass [g/s]
3)Throttle angle (potentiometer) [%]
4)Ignition timing angle (actual) [° b.TDC ]

Measured value block 004:
General
1)Engine speed [rpm]
2)Voltage [V]
3)Coolant temp. [°C]
4)Intake air temp. [°C]

Measured value block 005:
General
1)Engine speed [rpm]
2) Load [%]
3)Road speed [km/h]
4)Operating status (LL, TL, VL, S, BA)
LL: Idling speed
TL: Part throttle
VL: Full throttle
S : Overrun
BA: Acceleration enrichment

Measured value block 006:
General
1)Engine speed [rpm]
2)Load [%]
3)Intake air temp. [°C]
4)Altitude correction [%]
(Ratio to reference level; 0% = 0m; -50% = 5,000m; +20% = -2000m)

Measured value block 007:
General
1)Engine speed [rpm]
2) Load [%]
3)Coolant temp. [°C]
4)BDE mode
1 2 3 4 5 6 7 8
X Homogeneous
X Homogeneous lean
X Homogeneous stratified
X Stratified
X Stratified cat.heating
X Vacant
X Vacant
X Homogeneous knocking protection
If stratified prohibited, via 2 ASCII characters SV

Measured value block 008:
Vacant

Measured value block 009:
ESI (extended service intervals)
1)Oil level [mm]
2)Oil warning threshold [mm]
3)Fuel consumption signal [litres]
4)Consumption equivalent

Measured value block 010:
Ignition
1)Engine speed [rpm]
2)Load [%]
3)Throttle angle (potentiometer) [%]
4)Ignition timing angle (actual) [° b.TDC ]

Measured value block 011:
Ignition
1)Engine speed [rpm]
2)Coolant temp. [°C]
3)Intake air temp. [°C]
4)Ignition timing angle (actual) [° b.TDC ]

Measured value block 012:
Distributor setting
Vacant

Measured value block 013:
Vacant

Measured value block 014:
Misfire detection
1)Engine speed [rpm]
2)Load [%]
3)Misfire totaliser [n]
4)Misfire detection [activated/disabled]

Measured value block 015:
Misfire detection
1)Counter cyl. 1 [n]
2)Counter cyl. 2 [n]
3)Counter cyl. 3 [n]
4)Misfire detection [activated/disabled]

Measured value block 016:
Misfire detection
1)Counter cyl. 4 [n]
2)Counter cyl. 5 [n]
3)Counter cyl. 6 [n]
4)Misfire detection [activated/disabled]

Measured value block 017:
Misfire detection
Vacant

Measured value block 018:
Load/speed window, misfire detection
(If no misfires detected: 0 at all positions)
1)Lower engine speed threshold [rpm]
2)Upper engine speed threshold [rpm]
3)Lower load threshold [%]
4)Upper load threshold [%]

Measured value block 019:
Vacant

Measured value block 020:
Knock control
1)Ignition retard cyl. 1 [°CA]
2)Ignition retard cyl. 2 [°CA]
3)Ignition retard cyl. 3 [°CA]
4)Ignition retard cyl. 4 [°CA]

Measured value block 021:
Knock control
Vacant

Measured value block 022:
Knock control
1)Engine speed [rpm]
2) Load [%]
3)Ignition retard cyl. 1 [°CA]
4)Ignition retard cyl. 2 [°CA]

Measured value block 023:
Knock control
1)Engine speed [rpm]
2) Load [%]
3)Ignition retard cyl. 3 [°CA]
4)Ignition retard cyl. 4 [°CA]

Measured value block 024:
Knock control
Vacant

Measured value block 025:
Knock control
Vacant

Measured value block 026:
Knock sensor voltages
1)Cyl. 1 [V]
2)Cyl. 2 [V]
3)Cyl. 3 [V]
4)Cyl. 4 [V]

Measured value block 027:
Knock sensor voltages
Vacant

Measured value block 028: Basic setting
Test knock sensors
- Function 04 (Basic setting)
- Activate short trip
- Press brake pedal and at same time press accelerator pedal down fully:
- Engine speed automatically adjusts to 2200 rpm -> "Test ON"
- Wait for "Syst. OK" to be reached in the 4th field
1)Engine speed [rpm]
2) Load [%]
3)Coolant temp. [°C]
4)Result [Test ON/Test OFF/Sys. OK/Sys. n.OK]

Measured value block 029:
Reserved fir knock control adaption
Vacant

Measured value block 030: 1-bank systems
Lambda probes, status
1)Bank 1, probe 1
(Meaning of 5-digit number block)
4 3 2 1 0
X Control active
X Probe ready
X Probe heating on
X Cat.clearing active
X Vacant
1: Condition met
0: Condition not met

2)Bank 1, probe 2
(Meaning of 4-digit number block)
3 2 1 0
X Control active (I-component)
X Probe ready
X Probe heating on
X Control active (P-component)
1: Condition met
0: Condition not met

3)Bank 1, probe 3
Vacant

4)Vacant

Measured value block 031: 1-bank systems
Continuous lambda probes
1)Lambda actual bank 1 []
2)Lambda specification bank 1 []
3)Not used
4)Not used

Measured value block 032: 1-bank systems
Lambda probe learned values (max. value)
1)Bank 1, probe 1, idle [%]
2)Bank 1, probe 1, part throttle [%]
3)Not used
4)Not used

Measured value block 033: 1-bank systems
Lambda control value
1)Bank 1, control value [%]
2)Bank 1, lambda probe voltage [V]
3)Not used
4)Not used

Measured value block 034: Basic setting
Lambda probe ageing check bank 1 or 3 before cat - continuous probes
- Function 04 (Basic setting)
- Activate short trip
- Press brake pedal and at same time press accelerator pedal down fully:
- Engine speed automatically adjusts to 1800 rpm -> "Test ON"
- Wait for "B1-S1 OK" to be reached in the 4th field
1)Engine speed [rpm]
2)Exhaust/cat.temperature bank 1 or 3 [°C]
3)Dynamic value bank 1 or 3 [ ]
4)Result [Test ON / Test OFF / B1-S1 OK / B1-S1 n.OK]

Measured value block 035: 2-bank systems Basic setting
Vacant

Measured value block 036: 1-bank systems Basic setting
Lambda probe readiness after cat.
- Function 04 (Basic setting)
- Activate short trip
- Press brake pedal and at same time press accelerator pedal down fully:
- Engine speed automatically adjusts to 1800 rpm -> "Test ON"
- Wait for "B1-S2 OK" to appear in the 2nd field and "B2-S2 OK" in the 4th.
1)Probe voltage bank 1, probe 2 [V]
2)Result [Test ON/Test OFF/B1-S2 OK/B1-S2 n.OK]
3)Probe voltage bank 1, probe 3 [V]
4)Result [Test ON/Test OFF/B1-S3 OK/B1-S3 n.OK]

Measured value block 037: Basic setting
Lambda probes bank 1, delta-lambda - continuous probes
- Function 04 (Basic setting)
- Activate short trip
- Press brake pedal and at same time press accelerator pedal down fully:
- Engine speed automatically adjusts to 1800 rpm -> "Test ON"
- Wait for "B1-S1 OK" to appear in the 4th field.
1) Load [%]
2)Bank 1, probe 2: Lambda probe voltage after cat. [V]
3)Bank 1: Duty cycle shift [ms]
4)Result [Test ON / Test OFF / B1-S1. OK / B1-S1. nOK]

Measured value block 038: 2-bank systems Basic setting
Vacant

Measured value block 039: 2-bank systems Basic setting
Vacant

Measured value block 040: 2-bank systems
Vacant

Measured value block 041: 1/2-bank systems
Lambda probe heater, bank 1
1)Internal resistance bank 1, probe 1 []
2)Status/duty cycle bank 1, probe 1 [Htg.bC.ON/Htg.bC.OFF/%]
3)Internal resistance bank 1, probe 2 []
4)Status bank 1, probe 2 [Htg.aC.ON/Htg.aC.OFF]

Measured value block 042: 1-bank systems
Vacant

Measured value block 043: Basic setting
Lambda probe ageing after cat., bank 1
- Function 04 (Basic setting)
- Activate short trip
- Press brake pedal and at same time press accelerator pedal down fully:
- Engine speed automatically adjusts to 1800 rpm -> "Test ON"
- Wait for "B1-S2 OK" to appear in the 4th field.
1)Engine speed [rpm]
2)Exhaust/cat.temperature bank 1 [°C]
3)Lambda probe voltage bank 1, probe 2 [V]
4)Result [Test ON / Test OFF / B1-S2 OK / B1-S2 n.OK]
or [Test ON / Test OFF / B3-S2 OK / B3-S2 n.OK]

Measured value block 044: Basic setting
Vacant

Measured value block 045:
Vacant

Measured value block 046: Basic setting
Cat. conversion test, bank 1 / bank 3
- Short trips in blocks 034 / 035 / 036 / 037 / 038 / 039 / 043 / 044
must be completed "OK"
- Function 04 (Basic setting)
- Activate short trip
- Press brake pedal and at same time press accelerator pedal down fully:
- Engine speed automatically adjusts to 1800 rpm -> "Test ON"
- Wait for "CatB1 OK" to appear in the 4th field.
1)Engine speed [rpm]
2)Cat.temperature bank 1 [°C]
3)Readout cat. conversion bank 1
4)Result [Test ON / Test OFF / CatB1 OK / CatB1 n.OK]
or [Test ON / Test OFF / CatB3 OK / CatB3 n.OK]

Measured value block 047: Basic setting
Vacant

Measured value block 048: Basic setting
Vacant

Measured value block 049: Basic setting
Vacant

Measured value block 050: Systems without rear window/air conditioner readiness isolation
Engine speed increase
1)Actual engine speed [rpm]
2)Specified engine speed [rpm]
3)Rear window heating/AC request [on/off]
4)AC compressor [on/off/lower]

Measured value block 050: Systems with rear window/air conditioner readiness isolation
Engine speed increase
1)Actual engine speed [rpm]
2)Specified engine speed [rpm]
3)AC request [on/off]
4)AC compressor [on/off/lower]

Measured value block 051:
Engine speed, gear shifts
1)Actual engine speed [rpm]
2)Specified engine speed [rpm]
3)Gear (automatic only) [0-7]
P,N = 0
Gear = 1 - 6
R = 7
4)Battery voltage [V]

Measured value block 052: Systems with rear window/air conditioner readiness isolation
Engine speed increase
1)Actual engine speed [rpm]
2)Specified engine speed [rpm]
3)Air conditioner readiness [off/on]
4)Rear window/front windscreen heating [on/off]

Measured value block 053:
Engine speed increase based on alternator load
1)Actual engine speed [rpm]
2)Specified engine speed [rpm]
3)Battery voltage [V]
4) Alternator load [% or NM / W]

Measured value block 054:
Idling speed positioner/switch in electronic throttle systems
1)Actual engine speed [rpm]
2)Operating status [LL, TL, VL, SA, BA]
Neutral
LL: Idling speed
TL: Part throttle
VL: Full throttle
S : Overrun
BA: Acceleration enrichment
3)Accelerator position sender 1 (potentiometer) [%]
4)Throttle actuator angle (potentiometer) [%]

Measured value block 055: Systems without rear window/air conditioner readiness isolation
Idling speed stabilisation
1)Actual engine speed [rpm]
2)Idling speed controller []
3)Current learned value, idling speed stabilisation [%]
4)Operating states
(Meaning of 6-digit readout)
1 2 3 4 5 6
X AC compressor On
X Gear engaged
X AC readiness/rear window heater On
0 Always 0
X Steering at full lock
X Windscreen heater
(Condition met = 1; condition not met = 0)

Measured value block 055: Systems with rear window/air conditioner readiness isolation
Idling speed stabilisation
1)Actual engine speed [rpm]
2)Idling speed controller []
3)Current learned value, idling speed stabilisation [%]
4)Operating states
(Meaning of 6-digit readout)
1 2 3 4 5 6
X AC compressor On
X Gear engaged
X AC readiness On
X Rear window heater On
X Steering at full lock
X Windscreen heater
(Condition met = 1; condition not met = 0)

Measured value block 056: Systems without rear window/air conditioner readiness isolation
Idling speed stabilisation
1)Actual engine speed [rpm]
2)Specified engine speed [rpm]
3)Idling speed controller []
4)Operating states
(Meaning of 6-digit readout)
1 2 3 4 5 6
X AC compressor On
X Gear engaged
X AC readiness/rear window heater On
0 Always 0
X Steering at full lock
X Windscreen heater
(Condition met = 1; condition not met = 0)

Measured value block 056: Systems with rear window/air conditioner readiness isolation
Idling speed stabilisation
1)Actual engine speed [rpm]
2)Specified engine speed [rpm]
3)Air mass, idling speed controller []
4)Operating states
(Meaning of 6-digit readout)
1 2 3 4 5 6
X AC compressor On
X Gear engaged
X AC readiness On
X Rear window heater On
X Steering at full lock
X Windscreen heater
(Condition met = 1; condition not met = 0)

Measured value block 057:
Idling speed stabilisation, pressure signal AC compressor / torque signal
1)Actual engine speed [rpm]
2)Specified engine speed [rpm]
3)AC compressor [on/off/lower]
4)Pressure pickup duty cycle/Pressure from air conditioner [%/bar]

Measured value block 058: Systems with engine mounting only
Vacant

Measured value block 059
Vacant

Measured value block 060: Vehicles with electronic throttle Basic setting
Electronic throttle adaption
- Function 04 (Basic setting)
- Activate short trip
- Wait for "ADP OK" to appear in the 4th field
1)Throttle angle (potentiometer 1) [%]
2)Throttle angle (potentiometer 2) [%]
3)Throttle valve adaption status [n]
4)Operating status [Text: ADP runs/ADP OK/ERROR]

Measured value block 061: Systems without rear window/air conditioner readiness isolation
ESB/electronic throttle
1)Engine speed [rpm]
2)Battery voltage [V]
3)Throttle valve angle [%]
4) Operational status
(Meaning of 4-digit readout)
1 2 3 4
X AC compressor On
X Gear engaged
X AC readiness/rear window heater On
0 Always 0
(Condition met = 1; condition not met = 0)

Measured value block 061: Systems with rear window/air conditioner readiness isolation
ESB/electronic throttle
1)Engine speed [rpm]
2)Battery voltage [V]
3)Throttle valve angle [%]
4) Operational status
(Meaning of 4-digit readout)
1 2 3 4
X AC compressor On
X Gear engaged
X AC readiness On
X Rear window heater On
(Condition met = 1; condition not met = 0)

Measured value block 062:
Electronic throttle, potentiometer voltages ratio U/Uref
1)Throttle valve angle (potentiometer 1) [%]
2)Throttle valve angle (potentiometer 2) [%]
3)Pedal sender angle (potentiometer 1) [%]
4)Pedal sender angle (potentiometer 2) [%]

Measured value block 063: Basic setting
Kickdown adaption (only in vehicles with automatic gearbox)
- Function 04 (basic setting)
- Activate short trip
- Press accelerator pedal fully down following prompt
- Wait for "ADP OK" to be reached in the 4th field
1)Pedal sender angle (potentiometer 1) [%]
2)Learned kickdown point (potentiometer 1) [V]
3)Kickdown
4)Result (Press / ADP.runs / ADP.OK / ERROR)

Measured value block 064:
Throttle valve potentiometer adaption values
1)Potentiometer 1 lower adaption [V]
2)Potentiometer 2 lower adaption [V]
3)Emergency air gap potentiometer 1 [V]
4)Emergency air gap potentiometer 2 [V]

Measured value block 065:
Electronic throttle original adaption only for P/N system with EGR
1)Throttle valve angle potentiometer 1 [%]
2)Throttle valve angle potentiometer 2 [%]
3)DVE adaption status [n]
4)Operating status [Text: ADP runs/ADP OK/ERROR]

Measured value block 066: for 4-position operating lever
CCS enabled
1)Road speed actual [km/h]
2)Switch settings
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Brake light switch Pedal pressed
X Brake pedal switch Pedal pressed
X Clutch switch Pedal pressed
X CCS function enabled
X ACC-CU fitted (ADR)
X Main switch clocked
X CCS status for CAN
X CCS status for CAN
3)Specified road speed [km/h]
4)Switch settings for 4-position operating lever
(Meaning of 8-digit readout)
1 2 3 4
X CCS on/off
X Set (CCS on)
X Reduce
X Increase

Measured value block 066: for 4-position operating lever with CAN
CCS enabled
1)Road speed actual [km/h]
2)Switch settings
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Brake light switch Pedal pressed
X Brake pedal switch Pedal pressed
X Clutch switch Pedal pressed
X CCS function enabled
X ACC-CU fitted (ADR)
X Main switch clocked
X CCS status for CAN
X CCS status for CAN
3)Specified road speed [km/h]
4)Switch settings for 4-position operating lever
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X CCS on/off (CAN)
X Set (CCS on)
X Reduce
X Increase
X Vacant
X Vacant
X Vacant
X CCS on (hardware pin)

Measured value block 066: for 6-position operating lever
CCS enabled
1)Road speed actual [km/h]
2)Switch settings
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Brake light switch Pedal pressed
X Brake pedal switch Pedal pressed
X Clutch switch Pedal pressed
X CCS function enabled
X ACC-CU fitted (ADR)
X Main switch clocked
X CCS status for CAN
X CCS status for CAN
3)Specified road speed [km/h]
4)Switch settings for 6-position operating lever
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X CCS on/off
X Set (CCS on)
X Reduce
X Increase
X Set
X Resume
X Vacant
X CCS on (hardware pin)

Measured value block 067:
Vacant

Measured value block 068:
Gearbox status
1)Engine speed [rpm]
2) Load [%]
3)Gear [0-7]
P,N = 0
Gear = 1 - 6
R = 7
4)Converter/clutch status [text: TCC open / TTC close / TCC control]

Measured value block 069:
Vacant

Measured value block 070: Basic setting
Tank breather valve check
- Function 04 (Basic setting)
- Activate short trip
- Idle
- Wait for "TBV OK" to appear in the 4th field.
1)Opening angle TBV [%] (duty cycle)
2)Lambda controller/diagnosis value with active diagnosis [%]
3)Idling speed controller/diagnosis value with active diagnosis [%/g/sec/ ]
4)Result [Test ON / Test OFF / TBV OK / TBV n.OK]

Measured value block 071: Basic setting
Tank leak test (LDP, only with LEV)
- Function 04 (Basic setting)
- Activate short trip
- Idle
- Wait for "Syst. OK" to appear in the 4th field.
1)Status of reed contact [text: Reed open / Reed closed]
2)Fault message [text: Small leak / Large leak / Abort]
3)Test status [- / Syst.test / Measurement / Meas.END]
4)Result [Test ON / Test OFF / Syst. OK / Syst. n.OK]

Measured value block 072: Basic setting
Activated charcoal shut-off valve
- Function 04 (Basic setting)
- Activate short trip
- Idle
- Wait for "Syst. OK" to appear in the 4th field.
1)Status of reed contact [text: Reed open / Reed closed]
2)Fault message [text: Small leak / Large leak / Abort]
3)Test status [- / Syst.test / Measurement / Meas.END]
4)Result [Test ON / Test OFF / Syst. OK / Syst. n.OK]

Measured value block 073:
Vacant

Measured value block 074:
Vacant

Measured value block 075: with temperature sensor Basic setting
Vacant

Measured value block 076: for pressure systems
Vacant

Measured value block 077: Basic setting
Vacant

Measured value block 078
Vacant

Measured value block 079:(Systems with exhaust gas flaps)
Exhaust flap valves
1)Engine speed [rpm]
2)Load [%]
3)Flap bank 1 [on/off]
4)Flap bank 2 [on/off]


Measured value block 080:
CU identification
1) Manufacturer works number and identifier
2) Date of manufacture
3) Manufacturer modification status
4) Manufacturer test status number
Manufacturer serial number

Measured value block 081:
CU identification
1) Chassis number
2) Module no./serial number
3) Type test number
4)

Measured value block 082:
CU identification
1)Flash tool code
2)Flash date
3)HW module/type
4)SW module/type

Measured value block 083:
CU identification
1)Original chassis number
2)
3)
4)

Measured value block 084
Vacant

Measured value block 085:
Vacant

Measured value block 086:
Ready and cycle bits
1)Ready bits (completed tests)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Catalytic converter
X Heat.cat.
X ACF system
X SA system
X Air conditioner
X Lambda probes
X Lambda probe heating
X EGR
Specification:00000000
2)Cycle flags (completed cycles)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Cat. bank 1
X Cat. bank 2
X LDP
X TBV
X Htg. B1-S1
X Htg. B1-S2
X Htg. B2-S1
X Htg. B2-S2
Specification:00000000
3)Cycle flags (completed cycles)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X B1-S1 el.
X B1-S2 el.
X B1-S1 (delta-lambda shift)
X B1-S2 (probe ageing)
X B1-S1 (period)
X SLS B1
X SLS B2
X B1-S1
Specification:00000000
4)Cycle flags (completed cycles)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X B2-S1 el.
X B2-S2 el.
X B2-S1 (delta-lambda shift)
X B2-S2 (probe ageing)
X B2-S1 (period)
X EGR B1
X EGR B2
X B2-S1
Specification:00000000

Measured value block 087:
Ready and error bits
1)Ready bits (completed tests)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Catalytic converter
X Heat.cat.
X ACF system
X SA system
X Air conditioner
X Lambda probes
X Lambda probe heating
X EGR
Specification:00000000
2)Error flags
1= error
0= no error
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Cat. bank 1
X Cat. bank 2
X LDP
X TBV
X Htg. B1-S1
X Htg. B1-S2
X Htg. B2-S1
X Htg. B2-S2
Specification:00000000
3)Error flags
1= error
0= no error
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X B1-S1 el.
X B1-S2 el.
X B1-S1 (delta-lambda shift)
X B1-S2 (probe ageing)
X B1-S1 (period)
X SLS B1
X SLS B2
X B1-S1
Specification:00000000
4)Error flags
1= error
0= no error
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X B2-S1 el.
X B2-S2 el.
X B2-S1 (delta-lambda shift)
X B2-S2 (probe ageing)
X B2-S1 (period)
X EGR B1
X EGR B2
X B2-S1
Specification:00000000

Measured value block 088:
Cycle flags for other onboard diagnoses
1)Cycle flags (completed cycles)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Exhaust camshaft bank 2
X Exhaust camshaft bank 1
X Inlet camshaft bank 2
X Inlet camshaft bank 1
X Knock sensor 4
X Knock sensor 3
X Knock sensor 2
X Knock sensor 1
2)Cycle flags (completed cycles)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Brake light switch
X Clutch switch
X Idling speed control
X Road speed signal
X Idling speed switch
X Coolant temperature sensor
X Throttle valve potentiometer
X Air mass meter
3)Cycle flags (completed cycles)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Vacant
X Vacant
X Intake air
X Thermostat (USA only)
X Charge pressure control
X CCS control lever
X Lambda adaption B2
X Lambda adaption B1

Measured value block 089:
OBD
1))Kilometres driven with MIL [km] no readout for LEV
2)Tank level [OK/Too low]
3)
4)

Measured value block 090:
Vacant

Measured value block 091:
Continuous inlet camshaft adjustment, bank 1
1)Engine speed [rpm]
2)Duty cycle [%]
3)Adjustment specified [°CA] -14°CA...33°CA
4)Adjustment actual [°CA] -14°CA...33°CA


Measured value block 092:
Vacant

Measured value block 093: 2-bank systems
Inlet camshaft adjustment values
1)Engine speed [rpm]
2) Load [%]
3)Phase position bank 1 [°CA]
4)Vacant
The phase angle is the variation from the correct position (offset of Hall sender on shaft), 0 = position OK
The phase angle is only displayed if the phase adaption was completed successfully.

Measured value block 094: Basic setting
Continuous camshaft adjustment, inlet
- Function 04 (Basic setting)
- Activate short trip
- Press brake pedal and at same time press accelerator pedal down fully : Engine speed automatically adjusts to 2200 rpm -> "Test ON"
- Wait for "Syst. OK" to appear in fields 3 and 4.
1)Engine speed [rpm]
2)Adjustment actual [°CA]
3)Result bank 1 [Test on/ Test off/ Syst. OK/ Syst. n.OK]
4)Result bank 2 [Test on/ Test off/ Syst. OK/ Syst. n.OK]

Measured value block 095: Single-stage change-over
Vacant

Measured value block 096: Basic setting
Vacant

Measured value block 097:
Vacant

Measured value block 098
Vacant

Measured value block 099:
Lambda control shut-off (via basic setting)
(for sake of compatibility with old systems)
1)Engine speed [rpm]
2)Coolant temp. [°C]
3)Lambda controller [%]
4) lambda control [off/on]

Measured value block 100:
Readiness code (for sake of compatibility with old systems)
1)Ready bits (completed tests)
1= not completed
0= completed
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X Catalytic converters
X Heat.cat.
X ACF system
X SA system
X Air conditioner
X Lambda probes
X Lambda probe heating
X EGR
Specification:00000000
2)Coolant temp. [°C]
3)Time since engine start [s]
4)OBD status
(Meaning of 8-digit readout)
1 2 3 4 5 6 7 8
X No warm-up cycle detected
X Warm-up cycle detected
X Vacant
X Vacant
X At least 1 fault detected
X Trip complete
X Driving cycle recognised
X MIL on
1: Description met
0: Description not met

Measured value block 101: Systems with air mass metering
Injection
1)Engine speed [rpm]
2)Load [%]
3)Mean injection time [ms]
4)Air mass [g/s]

Measured value block 102:
Fuel injection
1)Engine speed [rpm]
2)Coolant temp. [°C]
3)Intake air temp. [°C]
4)Mean injection time [ms]

Measured value block 103:
Demand-regulated fuel pump
1)Actual fuel pressure [mbar] 3000-7000
2)I-controller fuel pressure [%/mbar]
3)Elec.fuel pump adaption value [%/mbar]
4)Fuel pump adaption [Test off/Adaption runs/Adaption OK/ERROR]

Measured value block 104:
Start adaption values
1)Starting engine temperature [°C]
2)Temperature adaption factor 1 [%]
3)Temperature adaption factor 2 [%]
4)Temperature adaption factor 3 [%]

Measured value block 105:
Vacant

Measured value block 106:
Fuel pressure
1)Fuel rail pressure [bar]
2)Electric fuel pump 1/2 [off / on or %PWM]
3) Vacant
4)Shut-off time [s]

Measured value block 107: for 1-bank systems Basic setting
Lambda control
- Function 04 (Basic setting)
- Activate short trip
- Idle
- Wait for "Syst. OK" to appear in the 4th field.
1)Engine speed [rpm]
2)Lambda controller bank 1 (averaged value) [%]
3) Vacant
4)Result text [ Test ON / Test OFF / Syst. OK / Syst. n.OK ]

Measured value block 108:
Vacant

Measured value block 109:
Vacant

Measured value block 110:
Load/full throttle enrichment
1)Engine speed [rpm]
2) Coolant temperature [°C]
3)Mean injection time [ms]
4)Throttle valve angle (potentiometer) [%]

Measured value block 111:
Charge pressure control
1)Adaption value ISS engine speed range 1 [%]
2)Adaption value ISS engine speed range 2 [%]
3)Adaption value ISS engine speed range 3 [%]
4)Adaption value ISS engine speed range 4 [%]

Measured value block 112: 1-bank system
Exhaust gas temperature
1)Exhaust gas temperature bank 1 [°C]
2)Enrichment factor sensor bank 1 [%]
3)Precalculated exhaust gas temperature[°C]
4)Modelled exhaust gas temperature[°C]

Measured value block 113:
Load/full throttle enrichment
1) Engine speed [rpm]
2) Load [%]
3)Throttle valve angle (potentiometer) [%]
4)Ambient pressure [mbar]

Measured value block 114:
Charge pressure control
1)Specified load without correction [%]
2)Specified load after correction [%]
3) Actual load [%]
4)Charge pressure valve duty cycle [%]

Measured value block 115:
Charge pressure control
1)Engine speed [rpm]
2) Load [%]
3) Specified charge pressure [mbar]
4) Actual charge pressure [mbar]

Measured value block 116:
Charge pressure control
1)Engine speed [rpm]
2) Correction factor, fuel [%]
3)Correction factor, coolant temp. [%]
4)Correction factor, intake air temp. [%]

Measured value block 117:
Charge pressure control
1)Engine speed [rpm]
2) Accelerator pedal position [%]
3)Throttle valve angle [%]
4) Specified charge pressure [mbar]

Measured value block 118:
Charge pressure control
1)Engine speed [rpm]
2) Intake air temperature [°C]
3)ISS valve duty cycle [%]
4) Charge pressure before throttle valve [mbar]

Measured value block 119:
Charge pressure control
1)Engine speed [rpm]
2)Current adaption value [%]
3)ISS valve duty cycle [%]
4) Charge pressure before throttle valve [mbar]

Measured value block 120:
TCS/FDR
1) Engine speed [rpm]
2)Specified torque TCS/FDR [Nm]
3)Engine torque [Nm]
4)Status [Text: TCS active/TCS n. active]

Measured value block 121:
Vacant

Measured value block 122:
Gearbox
1) Engine speed [rpm]
2)Specified torque Gearbox [Nm]
3)Engine torque [Nm]
4)Status [Text: Torque red/No red]

Measured value block 123:
Reserved for CAN bus messages

Measured value block 124:
Reserved for CAN bus messages

Measured value block 125:
CAN bus messages
1)Gearbox [fitting info]
- : No readout, if system not fitted, for
all CAN bus messages
Gear 0: No message yet received
Gear 1: Message received
2)ABS [fitting info]
ABS. 0
ABS. 1
3)Combi [fitting info]
Combi 0
Combi 1
4)AC [fitting info]
AC 0
AC 1

Measured value block 126:
CAN bus messages
1)Distance [fitting info]
Distance 0
Distance 1
2)Steering angle sender [fitting info]
St.ang. 0
St.ang. 1
3)Airbag [fitting info]
Airbag 0
Airbag 1
4)Elec. central electrics
Elec. CE 0
Elec. CE 1

Measured value block 127:
CAN bus messages
1)Four-wheel drive [fitting info]
4WD 0
4WD 1
2)Adaptive suspension [fitting info]
Level 0
Level 1
3)Steering wheel [fitting info]
Steering wheel 0
Steering wheel 1
4)Brake servo [fitting info]
Brake servo 0
Brake servo 1

Measured value block 128:
CAN bus messages
1)Electric ignition lock [fitting info]
El.ign. 0
El.ign. 1
2)NOx sensor 1 [fitting info]
NOx sensor1 0
NOx sensor1 1
3)NOx sensor2 [fitting info]
NOx sensor2 0
NOx sensor2 1
4) Engine CU/Slave CU
Engine 0 / Slave_1 0
Engine 1 / Slave_1 1

Measured value block 129:
CAN bus messages
1)Battery / Energy manager [fitting info]
E-Manag. 0
E-Manag. 1
2)Oil level sensor / ESI (TOG-Sensor) [fitting info]
Oil level 0
Oil level 1
3)Gateway [fitting info]
Gateway 0
Gateway 1
4) -

Measured value block 130: Basic setting
Map-controlled cooling
- Function 04 (Basic setting)
- Activate short trip
- Idle
- Wait for "Syst. OK" to appear in the 4th field.
1)Temperature engine outlet [°C]
2)Temperature radiator outlet [°C] only A3
3) Vacant
4) Vacant

Measured value block 131:
Map-controlled cooling
1)Temperature engine outlet [°C]
2) Vacant
3)Temperature radiator outlet [°C]
4) Vacant

Measured value block 132:
Vacant

Measured value block 133:
Vacant

Measured value block 134:
Temperatures
1) Oil temperature [°C]
2)Ambient temperature [°C]
3) Intake air temperature [°C]
4) Engine outlet temperature [°C]

Measured value block 135:
Fan control
1)Radiator outlet temperature [°C]
2)Duty cycle fan actuator 1 [%]
3)Duty cycle fan actuator 2 [%]
4)Radiator fan drive circuit temperature [°C]

Measured value block 136:
Fan activation relays
1)Vacant]
2)Vacant
3)Additional water pump [pump OFF/pump ON]
4)Fan run-on [on/off]

Measured value block 137:
Air conditioner requests
1)AC inlet [on/off]
2)Compressor [on/off]
3)High pressure switch / pressure from air conditioner [on/off / bar]
4)Fan request from air conditioner [%]

Measured value block 138:
Thermostat diagnosis
1)Engine start temperature [°C]
2)Mean engine air mass [g/s]
3)Mean vehicle speed [km/h]
4)Result [Text: Test ON / Test OFF / Syst. OK / Syst. n.OK / Abort]

Measured value block 139:
Thermostat diagnosis
1)Engine temperature in diagnosis [°C]
2)Actual air mass integral [kg]
3)Specified air mass integral [kg]
4)Result [Text: Test ON / Test OFF / Syst. OK / Syst. n.OK / Abort]

Measured value block 140: Hitachi
Fuel quantity control valve
1) Fuel quantity control valve closing angle [°CA]
2) Fuel quantity control valve opening angle [°CA]
3)Rail pressure actual [bar]
4)Status
(Meaning of 8-digit number block)
1 2 3 4 5 6 7 8
X 1 = active / 0 = not active
X Vacant
X Vacant
X Vacant
X Vacant
X Vacant
X Vacant
X Vacant

Measured value block 141: Hitachi
Fuel supply system
1)High pressure system adaption [bar]
2)Controller component [mm3]
3)Total compression volume [mm3]
4)Rail pressure (actual) [bar]

Measured value block 142: Continuous adjustment Basic setting
Charge motion flap for BDE
- Function 04 (Basic setting)
- Activate short trip
- Idle
- Wait for "Syst. OK" to appear in the 4th field.
1)Voltage upper limit [V]
2)Voltage lower limit [V]
3)Adaption status [n]
4)Adaption status [ADP runs / ADP OK / ERROR]

Measured value block 143: Continuous adjustment
Charge motion flap for BDE
1)Engine speed [rpm]
2) Load [%]
3)Charge motion flap opening angle [%]
4)BDE mode
(Meaning of 8-digit number block)
1 2 3 4 5 6 7 8
X Homogeneous
X Homogeneous lean
X Homogeneous stratified dual injection
X Stratified
X Stratified cat heating dual injection
X Vacant
X Vacant
X With bit 0 homogeneous knock protection

Measured value block 144: Basic setting
Vacant
Measured value block 145: Basic setting
Vacant

Measured value block 146: Basic setting
Vacant

Measured value block 147: Basic setting
Vacant

Measured value block 148: Basic setting
Desulphurisation NOx storage-type catalytic converter bank 1
Vacant

Measured value block 149: Basic setting
Vacant

Measured value block 150:
Vacant

Measured value block 151:
Vacant

Measured value block 152:
Vacant

Measured value block 153:
Vacant

Measured value block 154:
Vacant

Measured value block 155:
Vacant

Measured value block 156:
Vacant

Measured value block 157:
Vacant

Measured value block 158:
Vacant

Measured value block 159:
Vacant

Measured value block 160:
Vacant

Measured value block 161:
Vacant

Measured value block 162: Basic setting
Vacant

Measured value block 163: Basic setting
Vacant

Measured value block 164:
Vacant

Measured value block 165:
Continuous control after main cat., bank 1
Vacant

Measured value block 166:
Lambda probes plausibility, bank 1
1)Lambda actual []
2)Probe voltage after cat. [V]
3)Integral air mass [g/s]
4)Result [Test on/Test off/B1-S1 OK/B1-S1 n.OK]

Measured value block 167: Basic setting
Lambda probe overrun compensation
- Function 04 (Basic setting)
- Activate short trip
- Idle
- Wait for "Syst. OK" to appear in the 4th field.
1)Oxygen content [%]
2)Diagnostic overrun counter []
3)Steady lambda probe correction value characteristic [%]
4))Result [Test ON / Test OFF /Activated/ADP runs/Syst. OK/Syst. n.OK]

Measured value block 168: Basic setting
Vacant

Measured value block 169:
Vacant

Measured value block 170 -200:
Vacant

[a8 tech]

mvbs 103 and 106 should help you

[Crasher]

n the tank itself ? I take it that is the sensor simply picking up on actual low pressure then ? Have you seen this before Crasher ? It had me thinking it was the sensor as it said 'malfunction' rather than 'out of spec' or 'too low' ?

Yes I have seen may FSI VAG cars play up due to lift pump failure and initially I was mistakenly changing pressure sensors but I soon learnt that the lift pump was most often the culprit IF there were no rich and lean (yes, both) lambda errors indicating that the main pressure pump was low in delivery and leaking fuel into the engine, hence rich and lean codes together which in normal circumstances doesn't add up.

[A4 Lad]

A8 matey, as always, thanks for the help. I have got lost in the mvb info but thanks for the help lol.
Off the tools ? You wont like not getting your hands into it and you know it :D
Crasher, thank you indeed. Im going for a drive tomorrow and will erase any faults and try flicking through the mvb that is mentioned. Ill check to see what sensor is in mine too and if I get a chance, pull out the lift pump and get a look

[A4 Lad]

IF there were no rich and lean (yes, both) lambda errors indicating that the main pressure pump was low in delivery and leaking fuel into the engine, hence rich and lean codes together which in normal circumstances doesn't add up.

Thats pretty messed up. To be honest, faults like that could easily be mistaken for the ecu losing the plot :) by the way, the Weitec coilovers on the A4 are still as smooth and doing a good job as the day I got them from you :)
PS - Do you remember 'roughly' how much the lift pumps are and are they only available through Audi etc ?

[A4 Lad]

ok, a little update, the rain is pishing out of the heavens today so I have not checked any of the mechanical stuff but did find a few interesting readings on the computer. I had previously erased the fault yesterday and had an 80 mile round trip to make today so before I set off, I rechecked for faults... NO FAULTS FOUND ( as expected ) and I checked the MVB 103 and 106 with the engine at idle and this is where I think I might have found some strange readings. I have attached a picture from my phone to show yous. In MVB 103, the Fuel Pressure Regulator measurement shows -71 in the first picture where as when you hover over it, the reading is suposidly to be between 1300 - 3000 mbar at idle ( or something like that )
I went about my trip and the car done the stutter that I was talking about and when I returened, I carried out a fault code check and found this now :

2 Faults Found:

004506 - Fuel Pressure Sensor (G247)
P119A - 001 - Malfunction
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 3
Mileage: 192505 km
Time Indication: 0

Freeze Frame:
RPM: 845 /min
Load: 13.3 %
Speed: 0.0 km/h
Temperature: 74.0°C
Temperature: 16.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.351 V

008583 - Bank 1; System too Lean at Idle
P2187 - 004 -
Freeze Frame:
Fault Status: 01100100
Fault Priority: 0
Fault Frequency: 2
Mileage: 192505 km
Time Indication: 0

Freeze Frame:
RPM: 838 /min
Load: 13.3 %
Speed: 0.0 km/h
Temperature: 72.0°C
Temperature: 21.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.224 V


Readiness: 0000 0000

SOOOOO, I have the same fault in and also another fault has appeared lol.
Does this point more towards the sensor itself as the readings are soo far off ?

[Crasher]

If the fuel pressure is low, of course it will go lean. This shows that it is not the sensor itself but that the fuel pressure is in fact low.

[A4 Lad]

Ah ok but could the fuel pressure be THAT low and still let the car drive ? Surely the least that it can go is 0 ?
Ok so where does that leave me now ? Do you think to maybe go for the lift pump still ?

EDIT - I get you now, do you mean that the engine is indeed running lean at idle which confirms that there is not enough fuel pressure going into the engine ? I am still confused how it can be as low as -71 though ?

[A4 Lad]

Sorry, forgot to put the picture in :

http://img.tapatalk.com/02de47e5-fa17-af06.jpg

[a8 tech]

look at the pressure regulator valve as mentioned and actual line pressure before the high pressure pump 6 bar is ideal

If the line pressure before the pump is ok then it rules out the pressure pump and filter

Then I would look at the mechanical valve on the rail hence g247 reading low

Note I have never found g247 defective yet but have found g410 low pressure sensor faulty on occasion but mainly the older part number recall 24m4 covered this sensor

Use this for screen dumps http://www.gadwin.com/printscreen/ so we can see

Dump at idle and then rev to limiter and dump again after the idle has settled

Your rail pressure is ok looking at the pic 51.30 bar electric pump duty cycle seems fine too but if this drops off below 48 bar ish then you have highlighted a drop off

This why I use a inline pressure gauge to rule out defective sensors and you can see what's happening to pre supply

I deal with a lot of remaps and trust me tfsi needs spot on fuel pressure

[A4 Lad]

Ok, I will go and do that now and post the results in a bit

[A4 Lad]

Ok, that is a handy program :Blush:
Here we are :

At idle :
http://i1228.photobucket.com/albums/ee452/autofreak1978/ScreenShot001.jpg


After limiter and returned to idle 1st time :
http://i1228.photobucket.com/albums/ee452/autofreak1978/ScreenShot002.jpg


After limiter and return to idle 2nd time :
http://i1228.photobucket.com/albums/ee452/autofreak1978/ScreenShot003.jpg


Checked after this and no faults reappeared yet ( have not road driven yet since erase )
http://i1228.photobucket.com/albums/ee452/autofreak1978/ScreenShot004.jpg

[Crasher]

With the lambda sensor signal having told the ECU that the mixture is actually lean, I think you have an actual low fuel pressure situation rather than a misreading sensor so in the absence of a fuel pressure test gauge I would suggest changing the in tank lift pump first. Also it would be worth giving your local Audi dealer a call to see if your car is subject to or has received Campaign 24M4 under TPI 2017642/2. If the lift pump is not at fault I think the problem will be with the main pressure pump, possibly due to a worn cam/follower and this is relatively easy to inspect.

[A4 Lad]

With the lambda sensor signal having told the ECU that the mixture is actually lean, I think you have an actual low fuel pressure situation rather than a misreading sensor so in the absence of a fuel pressure test gauge I would suggest changing the in tank lift pump first. Also it would be worth giving your local Audi dealer a call to see if your car is subject to or has received Campaign 24M4 under TPI 2017642/2. If the lift pump is not at fault I think the problem will be with the main pressure pump, possibly due to a worn cam/follower and this is relatively easy to inspect.

What is the campaign for Crasher ? When I bought the car ( around 4'000 miles ago ) it had lots of timing problems which turned out to be an incorrectly timed inlet cam due to it being replaced which I assume was because of the lifter at some time rubbing through it. I replaced the lifter while I was repairing the timing to be safe. What sort of money are the pumps ?

[Crasher]

The campaign is for the fuel pressure sender for low pressure G410 failing, if your car was affected and done, there would be a sticker in the spare wheel well saying 24M4 and in the service book. The cam issue was under TPI 2014909/4 but should not have affected your BWE engine but I have seen it on all VAG FSI engines such as the Seat Leon and Audi A4.

[A4 Lad]

Had a look today in the boot. The sticker is there and also noted in the service book so that seems to have been done.

[A4 Lad]

Ok, update. Against all recomendations ..... my dealer had a G247 in stock so I got it today and replaced it. Took it for a 60 mile trip and no returning fault codes !!!
Thats the good news, bad news is that I have still got the power loss :(

[Crasher]

What a surprise!

[A4 Lad]

lol, in fairness, it has cleared all the faults in the ecu which kept on returning after even a one mile drive so there must have been a problem with the sensor ( thats what I am telling myself anyway :D )
Ill have another look tomorrow night and take out the fuel pump. I assume that Bosch or other companies make the pumps rather than OE Crasher ? Im sure an Audi unit is a nice sum ?

[a8 tech]

Can you not borrow a fuel pressure tester?

[A4 Lad]

Ok. I just spent a good half hour typing out a big reply and my stupid heap of krap iphone app TapaTalk decided to crash !!!!!!!
Basically after driving it alot today, there is no return of any fault codes but the problems still there.
I am wondering if it is maybe more of a boosting problem rather than fuel. Its soo hard to pin point when driving as before you know it, your hitting 90 mph and need to slow down !
I had a look at the DV and its like brand new still as I had only replaced it 2000 miles ago so thats that ruled out.
No misfires show up on MVB when I drive ( even when the problem is happening ) so to me, that rules out ignition problems.
I did notice that one of the two pipes on the exhaust side of the rocker cover has been quite butcherly replaced with a bit of strong clear pipe ( the front smaller of the two pipes, NOT the metal one ) and it looks like it might dissapear onto the top of the turbo OR it might just be a breather ?
Is there any MVB to test the turbo boost ?

[A4 Lad]

ANOTHER UPDATE !
Faults are back into the ecu, exact same two as before, g247 malfunction and too lean at idle. Checked her all over for vacuum leaks and could visually see none. Replaced the hose which I thought was possibly giving trouble too.
TPS had a fuel pump in stock so I replaced it, and a new fuel filter.

STILL THE SAME PROBLEM :aargh4::aargh4::aargh4::aargh4::aargh4::aargh4::a argh4::aargh4::aargh4:

After wanting to throw a match into the said petrol tank, I calmed myself down and worked out how to log a few data blocks with Vag Com. To me, the data that is here, looks ok but I am starting to get blinded by the bugger now :(


http://i1228.photobucket.com/albums/ee452/autofreak1978/ScreenShot005.jpg

[a8 tech]

Seems like insufficient pressure but hard to see pic your actual always seems lower at low rpm but matches up under acceleration

Replace the pressure reg valve on the rail

Told you tfsi are a nightmare

[A4 Lad]

And you were right A8
The valve on the rail itself ? The one that you were saying about earlier ?

This one ?

http://www.ebay.co.uk/itm/New-Genuine-VW-Pressure-Limiting-Valve-06D-130-757-C-/140320905180?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item20abc717dc&clk_rvr_id=341655312692&afsrc=1

On a side note, whats the best thing to break up the carbon on the valves on these engines ? if I have to take off the manifold, I might as well get a wire brush onto a long screwdriver and decoke the valves.

[a8 tech]

Yes, rarely change the pumps on Audi but vw have problems
Cheapest option too lol, fitted a few but always find this engine clogs up and injector spray patterns also give problems due to carbon covering them

look here as well

http://wiki.ross-tech.com/wiki/index.php/Fuel_Trim_Info

this will tell you what the lambda is seeing

Measured value block 032: 1-bank systems
Lambda probe learned values (max. value)
1)Bank 1, probe 1, idle [%]
2)Bank 1, probe 1, part throttle [%]


Special Functions

Checking Fuel Pressure
Prerequisites:
Ignition ON
Engine ON (Idle)
System voltage at least 11.0 V.
Coolant Temperature at least 80 °C

[Select]
[01 - Engine]
[Meas. Blocks - 08]
Group 103
[Go!]
Field 1: Fuel Pressure (Low), Specification: 2800...7200 mbar
Field 2: Fuel Pump Adaptation, Specification: -1000...+1000 %
Group 140
[Go!]
Field 3: Fuel Rail Pressure (High), Specification: 25.0...110.0 bar
Increase the Engine Speed while checking this value, the Pressure has to rise with the Engine Speed.
Group 230
[Go!]
Field 1: Specified Fuel Rail Pressure (High)
Field 2: Actual Fuel Rail Pressure (High), Specification: 25.0...110.0 bar
Field 3: Deviation between specified and actual fuel pressure, Specification: max. 5.0 bar
[Done, Go Back]
[Close Controller, Go Back - 06]

[A4 Lad]

One thing that I have learnt over the years with these damn machines is that sometimes it comes down to 'try and illimination'
I dont understand a third of the uses of VAG COM so its all a learning curve for me so i dont really mind. Well thats a lie, I would rather have replaced a sensor that was dead handy to get to and for it to have fixed it first time but..... :)
Thanks A8, I will have a read through that info tonight and I will try them reading for the lambda and fuel pressure in the morning.

[a8 tech]

chuck vcds in the bin and upgrade to vas mate with guided fault finding

vcds is just a toy and no good for earning money in diagnostics

You can get up and running with oem stuff for around £1000

[Crasher]

My thoughts are still low fuel pressure but you can't blame the car if you don't have the testing gear. I went with the lift pump because it is failure prone and cheaper than the pressure pump. The lean at idle code says it is not getting enough fuel so it is not a pressure sensor, you have low pressure so in the absence of testing equipment you will now have to change the pressure pump. As A8 says, FSI fault finding can be very frustrating, if you knew how much independent garages (you should see some of the near suicidal posts on some of the trade forums), VAG specialists and even VAG dealers with ALL the kit struggle, you can see why you are fighting it. If it had been properly tested using GFF it would/should have been fixed by now. I also think you may find the pressure pumps are still on back order.

[a8 tech]

Well said you old bugger lol

[A4 Lad]

Crasher..... I am not for one minute blaming you for me fitting the lift pump and it not working. I am simply posting my progress.

[A4 Lad]

chuck vcds in the bin and upgrade to vas mate with guided fault finding

vcds is just a toy and no good for earning money in diagnostics

You can get up and running with oem stuff for around £1000

Ill look into it A8, I was not aware of it.

[Crasher]

Hmm, calling VCDS a toy is perhaps a bit extreme and there is no question that it is faster and more practical than VAS BUT there are areas where VCDS has seriously slipped behind even VAS PC never mind some other professional systems, I feel they have decided to aim at the amateur mechanic market and ignore the professional user which I feel is a serious error and I have told them this. The other point with VAS PC is that it is so slow that using it professionally can often make you lose the will to live!

[A4 Lad]

Ill be totally honest with you. We have a Snap On Solus Pro and VCDS, we are only a small garage and dont normally dive too deep into any diagnostic work unless we know we can productivly repair it for both us for a profit and the customer for value. A job like what I am having on my own car, I would honestly have to put my hands up and say that I would advise the customer to goto the dealer as, you said Crasher, I dont have the equipment to diagnose confidently. I know that this is a catch 22 situation and I know that I am going to have to get my finger out ( and wallet ) before I get left behind but just at the minute, I dont have the capital for the more expensive tools. Before anyone says it, I know that a pressure gauge is not an expensive tool but its one of them tools that I have never needed before my own problem.

[a8 tech]

Crasher, I can put you onto a pc tech one man set up who can sort all vas problems for you

[A4 Lad]

OK, I have logged and turned the info into a graph.

BLUE = LOW FUEL PRESSURE ( lowest is 4.21bar to highest being 6.17bar )
RED = HIGH FUEL PRESSURE ( specified )
GREEN = HIGH FUEL PRESSURE ( actual )

http://i1228.photobucket.com/albums/ee452/autofreak1978/ScreenShot006.jpg

I just want to get my head around this and throw what I am thinking out there and see if anyone agrees with me. YES, I definitely have a fuel pressure that the ecu is picking up as it is logging a fault. When I took these readings, the problem that I am having, was very apparent and stuttering etc. The results here show both the low and high pressure are pretty consistent with each other and do not drop out of specification..... SOOOO.... Is it maybe possible that the problem that I am having is not related to the fuel pressure problem that is being stored in the ecu ??

[A4 Lad]

UPDATE - FIXED !!!

Just to let you guys know, I replaced the air mass meter and the stutter and hesitation has not happened once since. The faults are still logged in the ecu to do with the fuel sensor BUT it ended up the two were NOT linked. Just goes to show that sometimes chasing a stored fault is not always your answer. Thanks to A8 and Crasher for the help along the way :D Really appreciated !

[iany]

UPDATE - FIXED !!!

Just to let you guys know, I replaced the air mass meter and the stutter and hesitation has not happened once since. The faults are still logged in the ecu to do with the fuel sensor BUT it ended up the two were NOT linked. Just goes to show that sometimes chasing a stored fault is not always your answer. Thanks to A8 and Crasher for the help along the way :D Really appreciated !

spotted that you linked this from the one i was reading on audizine. glad you got it fixed, better than the fireman option! its annoying the life out of me too, any further issues?

all these question, sorry! ... how much was the air mass sensor? i've had mine out and gave it a blow out with an air gun, seemed a little better after, might try unplug and run and see if it alters to narrow it down...

[iany]

spotted that you linked this from the one i was reading on audizine. glad you got it fixed, better than the fireman option! its annoying the life out of me too, any further issues?

all these question, sorry! ... how much was the air mass sensor? i've had mine out and gave it a blow out with an air gun, seemed a little better after, might try unplug and run and see if it alters to narrow it down...

so after doing -
coil packs
plugs
diverter valve
cleaning MAF

no joy, still hesitant, I cleaned maf again and I made it worse, so I got a new one and its fixed, a is perfect now!!

[Crasher]

If I had £1 for every time I have told people not to clean the Air Mass Meter............

[iany]

So it's known to screw them up?

[Crasher]

Somewhat!

[iany]

Well I'll second that after recent experience! New maf saved the day but cleaning made it tons worse

[iany]

ok so there's a tiny hesitance there... and 2 fault codes this week plus the CEL is on.

codes were these 2... fuel pressure and IMRC (i've cleaned around the IMRC and d40'd it since)

P2015 Generic DTC: Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (http://www.dtcsearch.com/P2015/Generic/)
P2293 Generic DTC: Fuel Pressure Regulator 2 Performance (http://www.dtcsearch.com/P2293/)

got a BT reader on order as i used a friends to get these, reset and the light was back on 24 hours later. will see if its the same or one of these again this time...

[A4 Lad]

Tiny or are you not wanting to admit to yourself that the MAF didn't actually fix the problem ? ;) Sorry for not updating or replying. The MAF did not actually fix my problem and in the end, I learned to live with it and ending up selling the car a year later. I know that is of absolutely no help to you at all but there you have it.


Sent from my iPhone using Tapatalk

[A4 Lad]

Let's start from the start again. I'm using TapaTalk app so please forgive me for asking, what year, engine etc are you blessed with ? I assume that you don't have VCDS to get the fault codes rather than a generic reader ?


Sent from my iPhone using Tapatalk

[iany]

Tiny or are you not wanting to admit to yourself that the MAF didn't actually fix the problem ? ;)

well.... not sure yet, it seems a ton better with new MAF but there's still a tiny bit.... so i reckon it helped a fair bit. just wondering what the lights on for and won't have a reader till the new one arrives in the post, hopefully tomorrow...

[A4 Lad]

Lights on are actually a good thing in your case as you will hopefully have something to work of


Sent from my iPhone using Tapatalk

[iany]

Let's start from the start again. I'm using TapaTalk app so please forgive me for asking, what year, engine etc are you blessed with ? I assume that you don't have VCDS to get the fault codes rather than a generic reader ?


Sent from my iPhone using Tapatalk


mines 2009 tfsi 2.0

my VCDS won't work on this one as its newer than the cable i have can read so i used a friends BT reader and torque.

[iany]

Lights on are actually a good thing in your case as you will hopefully have something to work of


Sent from my iPhone using Tapatalk


totally agree, once i see if this is the same code or 2 codes i can work from that, hoping its a part that i hear might be covered under an extended warranty from audi.... IMRC and Fuel pressure regulator...

[A4 Lad]

I'll be honest and say that I have never experienced any trouble with the IMRC thing but Google is a wonderful place and can steer you in the wrong direction very easy :)


Sent from my iPhone using Tapatalk

[iany]

i got these two codes last week and reset on Monday, car drives fine still and is better than i've ever known it..

P2015 Generic DTC: Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (http://www.dtcsearch.com/P2015/Generic/)
P2293 Generic DTC: Fuel Pressure Regulator 2 Performance (http://www.dtcsearch.com/P2293/)

one's fuel pressure the other IMRC... after 24 hours the light was back, will be curious to see which of these is back again....

[Crasher]

More than likely you have the usual failed inlet manifold and I suggest you remove the high pressure fuel pump and check the follower and the camshaft lobe for wear. What is your engine type code, CDNB?

[iany]

Where do I find the code? It's a b8 so assumed the follower would be ok, I think the op had issues with a b7 and I've posted as had same issues

[Crasher]

The follower is still causing problems, it is the longlife oil changes that are the reason they still fail. The code is in your service book, on the data sticker on the boot floor, your reg document or PM me your reg number and I can get it from that.

[iany]

CDNC on the service book :)

[iany]

code reader arrived today,

out of the 2 errors i had one hasn't returned, just the IMRC control sensor one, i've reset it, won't get to drive her today but should tomorrow and will see if it comes back.

if it is something that's covered by audi extended warranty, is that applicable to all cars? mine was bought from a non audi dealer. can i still claim? if not i have a warranty direct policy.

[Crasher]

Audi extended warranty? It is getting on for 6 years old. If you bought it outside of the Audi network then ANY goodwill chance has gone. I forgot it’s an 8K it being in the 8E section so yours has the roller follower so it should not be an issue but the pumps have been problematic and revised twice. Most of my work on these (apart from general maintenance) has been with the cam chain drive system falling apart. Your car is nearly six years old and was bought outside the network, any Audi warranty expired nearly three years ago and your other warranty may exclude wear and tear claims.

[iany]

Thanks for explaining, wasn't sure if the extended warranty to cover certain things was similar to a recall in that it could apply to any age car.

If it reappears then I should have cover from my warranty direct policy.

What do tehese manifolds cost? Lot of labour involved in swapping them?

[Crasher]

The main manifold part (06H 133 201 AF) is around £370 from Audi and is not complicated to fit, just long winded. The official Audi time is dead on two hours which is about 100% over optimistic in my view as to what it takes in the real world.

[iany]

Thanks again 😃

If the light does reappear I'll check it and not clear it, then take it to the dealers, assuming that is best and an Indy wouldn't be able to fix it?

[iany]

I still get the 2015 code every other day, I've been resetting it. Appears to be a bit stuck sometimes and moving the arm a few Times frees it up. Will get it sorted in the new year hopefully on the warranty, although spoken to them and they said breakdown people need to attend and prove they can't fix it, then tow it to the garage to be fixed due to the type of warranty I have. Sound a like a cop out as I expect breakdown people will reset the light and leave it as it's drivable, they might not even agree to come out....