Just bought VCDS and need some help with Passat FSi codes

[nr800]

Hi,

I have just bought a VCDS to look at a problem have with my Passat FSi.

Although I am not new to diagnostics, I am new to this car and Can bus dignostics.

My engine is failing to hold steady revs at idle and the VCDS reports 9 faults - Pasted below. I am guessing that it is possible for one problem to cause several fault codes to be recorded, so given the information and the faults codes what would you guys think would be the best place to start?

Thanks in advance for any help.

Nigel

Address 01: Engine Labels: 06F-907-115-AXX.lbl
Part No SW: 3C0 907 115 Q HW: 3C0 907 115
Component: 2.0l R4/4V TFSI 0030
Revision: --H10--- Serial number: VWZCZ000000000
Coding: 040C000318070160
Shop #: WSC 00339 210 94680
VCID: 2E59FF57C065
9 Faults Found:
012599 - Intake Manifold Runner Control: Basic Setting not Completed
P3137 - 001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 2
Mileage: 88773 km
Time Indication: 0
Freeze Frame:
RPM: 195 /min
Load: 52.9 %
Speed: 0.0 km/h
Temperature: 72.0°C
Temperature: 57.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 10.668 V
001602 - Sensor Reference Voltage A: Circuit: Low
P0642 - 002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 2
Mileage: 88773 km
Time Indication: 0
Freeze Frame:
RPM: 195 /min
Load: 52.9 %
Speed: 0.0 km/h
Temperature: 72.0°C
Temperature: 57.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 10.668 V
012403 - Fuel Pump Circuit: Electrical Malfunction
P3073 - 004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 1
Mileage: 89288 km
Time Indication: 0
Date: 2000.00.00
Time: 08:54:06
Freeze Frame:
RPM: 972 /min
Load: 28.2 %
Speed: 0.0 km/h
Temperature: 4.0°C
Temperature: 3.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.478 V
004759 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
P1297 - 001 - Upper Limit Exceeded
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 2
Mileage: 89542 km
Time Indication: 0
Date: 2000.00.00
Time: 00:25:06
Freeze Frame:
RPM: 1508 /min
Load: 20.8 %
Speed: 41.0 km/h
Temperature: 82.0°C
Temperature: 16.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.478 V
004243 - Bank 1; Fuel Measuring System 2: Malfunction
P1093 - 008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 1
Mileage: 89548 km
Time Indication: 0
Date: 2000.00.00
Time: 00:32:30
Freeze Frame:
RPM: 1619 /min
Load: 11.8 %
Speed: 23.0 km/h
Temperature: 84.0°C
Temperature: 17.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.351 V
008583 - Bank 1; System too Lean at Idle
P2187 - 004 - No Signal/Communication - MIL ON
Freeze Frame:
Fault Status: 11100100
Fault Priority: 0
Fault Frequency: 1
Mileage: 89560 km
Time Indication: 0
Date: 2000.00.00
Time: 09:00:50
Freeze Frame:
RPM: 817 /min
Load: 15.7 %
Speed: 1.0 km/h
Temperature: 81.0°C
Temperature: 13.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 14.351 V
008825 - Leak in Air Intake System
P2279 - 002 - Lower Limit Exceeded
Freeze Frame:
Fault Status: 01100010
Fault Priority: 0
Fault Frequency: 1
Mileage: 89564 km
Time Indication: 0
Date: 2000.00.00
Time: 17:17:26
Freeze Frame:
RPM: 834 /min
Load: 16.1 %
Speed: 0.0 km/h
Temperature: 81.0°C
Temperature: 19.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 14.478 V
001287 - Idle Control System RPM: Higher than Expected.
P0507 - 001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 2
Mileage: 89635 km
Time Indication: 0
Date: 2000.00.00
Time: 12:34:25
Freeze Frame:
RPM: 1075 /min
Load: 14.9 %
Speed: 0.0 km/h
Temperature: 84.0°C
Temperature: 21.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.351 V
001089 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 002 - Lower Limit Exceeded
Freeze Frame:
Fault Status: 01100010
Fault Priority: 0
Fault Frequency: 1
Mileage: 89666 km
Time Indication: 0
Date: 2000.00.00
Time: 17:12:52
Freeze Frame:
RPM: 839 /min
Load: 16.1 %
Speed: 0.0 km/h
Temperature: 85.0°C
Temperature: 24.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.097 V
Readiness: 0000 0000

[A4 Lad]

If you do a search on my name and check my latest thread on MIL Problems, you might find the solution to a couple of your codes. The valve also makes an uneven idle that is shown from A8

[Dana@Ross-Tech]

I haven't searched Bangor Lad's posts, but I agree that those problems / faults are common. In the US, several of the root causes are covered under recalls.

I would focus on these 3:

008583 - Bank 1; System too Lean at Idle
P2187 - 004 - No Signal/Communication - MIL ON
http://wiki.ross-tech.com/wiki/index.php/18619/P2187/008583

Either pull the oil cap at idle and see if vacuum is present inside the crankcase
-or-
With the engine Off, remove the black plastic hose/tube that goes to the breather valve and cap it off directly at the manifold. Make sure you choose a cap that will not get sucked into the engine! This will eliminate the possibility that the faulty valve can cause an internal leak. Start it and see if the idle has improved. You may also find this MB 032 info helpful both before and after clearing faults and bypassing the valve:

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



008825 - Leak in Air Intake System
P2279 - 002 - Lower Limit Exceeded
http://wiki.ross-tech.com/wiki/index.php/18711/P2279/008825



001287 - Idle Control System RPM: Higher than Expected.
P0507 - 001 - Upper Limit Exceeded - Intermittent
http://wiki.ross-tech.com/wiki/index.php/16891/P0507/001287

[nr800]

Ok, only today have i had chance to have a look at this problem, thank you for the replies.

Even today I only managed to grab five minutes under the bonnet.

So tried the simplest thing first, with the engine running I removed the oil filler cap and placed my hand over it and could feel a vacuum there. Is that what I should feel or is that a bad thing?

Cheers

Nigel

[A4 Lad]

Im not sure if thats the way it should be or not but mine does the same, did she start to run off cylinders and bad idle when you removed the oil cap ? Mine does this and thats after replacing the PCV although she now idles perfectly so I assume YES is the answer.