Vag Tacho, Will it code in a replacement ECU and clocks?

[Verygoldgolf]

Hi all, right I'm trying to rule out the ECU whilst trying to sort out my 1.4 cutting out. All I need to know is can Vag Tacho code in and make work-

1. A replacement ECU of the same part number
2. A replacement set of clocks of the same part number (old clocks are playing up that's why I want to swap them).

Is the SKC code in the clocks or the ECU? Just need know before chucking any more money at it for no reason.

By the way I have had the car plugged in and it is throwing up fault codes for stuff I have already replaced (codes were cleared) hence why I want to rule out the ECU.

Thanks Gareth

[zollaf]

so what codes are coming up. just because a code shows for a particular part doesn't always mean the replacing it will cure the fault.

[Verygoldgolf]

00518 Throttle valve potentiometer-G49 Short to ground
00513 Engine speed sensor-G28 implausible signal
00281 Vehicle speed sensor R/P- G68 implausible signal (not 2 worried about that 1)

Symptoms are- Car runs fine when cold, once it gets warm it cuts out on over run or light throttle. When it cuts out though the rev counter drops instantly e.g cuts ignition, normally cuts back in again after a couple of seconds but the odd time you have to knock the key back and turn it back on again (whilst still moving) to get power back. Also when warm it runs fine on the spot but if you turn the steering on the spot it again cuts the ignition and it dies. Even if you rev it on the spot and turn the wheel it just dies. It'll run all day on tickover as long as you don't touch the steering wheel. Seriously doing my head in now, considering selling it that's how bad it's getting now!

Thanks Gareth

[zollaf]

ok, interesting, so what have you done so far replacing things ?

[Verygoldgolf]

Coilpack (new)
crank sensor (used but made no difference)
Camshaft sensor (again used)
Throttle body taken off and cleaned (made it run a bit smoother)

Did an engine swap last year due to cambelt tensioner failing and has been good as gold for 9 months then developed miss-fire. Can't understand what componant would be breaking down only when hot. If it was a wiring fault then it would be a more irregular fault, also if it was still crank sensor then surely it would struggle to start. Speedo stopped working after I swapped the engine and even 2 VW specialists can't find the road speed sensor on the gearbox! It's a 98 1.4 with an AHW engine. Really reluctant to sell it but i'm not chucking money at if forever just to have a car that's only any good to go into town on a cool day lol.

Gareth

[diggy84]

I have a 199.5 vw jetta vr6 AFP!I am getting many electrical short to ground codes and i cleaned the terminals under the battery box and the car is still running really rough and really rich! I noticed that on the alternator there is a visible nut that is on a screw and there is no wire attached to it! The kid i bought the car from just had the alternator replaced. The camshaft sensor also had oil in the plug and was bad and i replaced it and still runs rough and when i down shift it pops like a lil bit of backfiring going on! My MIL and ABS and a the other lights in the middle cluster will not illuminate and my temp gauge is also not moving.I am going to check the converter to see if it is clogged but i want to figure out the electrical short faults that i am getting! Where do all the wires from the alternator run to and where are all the major grounds for the car i cant find that info! New plugs,coilpack,cam shaft sens,oil pan,thermostat,100 and 409 relay also replaced the TPS sensor.Here is the scan! Any help would be great this is my first V-DUB!






20 Faults Found:
18010 - Power Supply Terminal 30
P1602 - 35-10 - Voltage too Low - Intermittent
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - Intermittent
16687 - Cylinder 3
P0303 - 35-10 - Misfire Detected - Intermittent
16497 - Intake Air Temp. Sensor (G42)
P0113 - 35-10 - Signal too High - Intermittent
16486 - Mass Air Flow Sensor (G70)
P0102 - 35-00 - Signal too Low
17834 - EVAP Purge Valve (N80)
P1426 - 35-00 - Open Circuit
17950 - Angle Sensor 1 for Throttle Actuator (G187)
P1542 - 35-10 - Implausible Signal - Intermittent
17952 - Angle Sensor 1 for Throttle Actuator (G187)
P1544 - 35-10 - Signal too Large - Intermittent
17580 - Angle Sensor 2 for Throttle Actuator (G188) Signal too Low
P1172 - 35-10 - - Intermittent
17633 - Fuel Injector for Cylinder 1 (N30)
P1225 - 35-10 - Short to Ground - Intermittent
17637 - Fuel Injector for Cylinder 5 (N83)
P1229 - 35-10 - Short to Ground - Intermittent
17635 - Fuel Injector for Cylinder 3 (N32)
P1227 - 35-10 - Short to Ground - Intermittent
17638 - Fuel Injector for Cylinder 6 (N84)
P1230 - 35-10 - Short to Ground - Intermittent
17880 - EVAP Leak Detection Pump
P1472 - 35-10 - Short to Ground - Intermittent
17843 - Secondary Air Pump Relay (J299)
P1435 - 35-10 - Short to Ground - Intermittent
17829 - Secondary Air Injection Solenoid Valve (N112)
P1421 - 35-10 - Short to Ground - Intermittent
17636 - Fuel Injector for Cylinder 4 (N33)
P1228 - 35-10 - Short to Ground - Intermittent
17923 - Intake Manifold Valve (N156)
P1515 - 35-10 - Short to Ground - Intermittent
17634 - Fuel Injector for Cylinder 2 (N31)
P1226 - 35-10 - Short to Ground - Intermittent
17525 - Oxygen (Lambda) Sensor Heating Circuit: B1 S2
P1117 - 35-10 - Short to Ground - Intermittent
Readiness: 0110 1101


-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1J0-907-37x-ABS.lbl
Part No: 1J0 907 379 H
Component: ABS/EDS 20 IE CAN 0001
Coding: 03604
Shop #: WSC 00066
VCID: 3663DDFA12827BAE71B-4B1A


3 Faults Found:
01276 - ABS Hydraulic Pump (V64)
16-00 - Signal Outside Specifications
00290 - ABS Wheel Speed Sensor; Rear Left (G46)
35-00 - -
00287 - ABS Wheel Speed Sensor; Rear Right (G44)
35-00 - -


-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1J0-909-60x-VW3.lbl
Part No: 1J0 909 609
Component: C AIRBAG VW3 SG 0002
Coding: 00067
Shop #: WSC 00066
VCID: ECD7BF929C4E717ED7F-4B1A


1 Fault Found:
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent


-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1J0-919-xxx-17.lbl
Part No: 1J0 919 951 B
Component: A4-KOMBIINSTR. VDO V57
Coding: 06262
Shop #: WSC 00000
VCID: 2F6DE89EEDD84A6632D-5142


1 Fault Found:
01039 - Coolant Temperature Sensor (G2)
29-10 - Short to Ground - Intermittent


-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 1J0-959-799.lbl
Part No: 1J0 959 799 AJ
Component: 61 Zentral-SG Komf. 0001
Coding: 04096
Shop #: WSC 00066
VCID: 8603ED3AA2E2AB2E21B-4AE8


Subsystem 1 - Part No: 1J1959801C
Component: 61 T?rsteuerger. FS0001r


Subsystem 2 - Part No: 1J1959802D
Component: 61 T?rsteuerger. BF0001r


Subsystem 3 - Part No: 1J4959811C
Component: 61 T?rsteuerger. HL0001r


Subsystem 4 - Part No: 1J4959812C
Component: 61 T?rsteuerger. HR0001H


4 Faults Found:
00953 - Interior Light Time limit
25-10 - Unknown Switch Condition - Intermittent
01358 - Internal Central Locking Switch; Driver Side (E150)
27-10 - Implausible Signal - Intermittent
00912 - Window Regulator Switch; Front Left (E40)
27-10 - Implausible Signal - Intermittent
00944 - Heated Exterior Mirror; Passenger Side (Z5)
35-00 - -

[Doctle Odd]

You would need VCDS to code in a new ECU it's a lot cheaper than VAG tacho too. You'll need the pin code for your car and the donor ECU pin if it's second hand. Depending on the age of the car you can get the PIN from a main dealer or a good locksmith. ECM and cluster swapping for Immobilizer 3 - YouTube