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Discussion Starter #1
Just a quick question about disconnecting injector wiring, can i just pull the plugs with pliers or do i need to push the plugs somehow to disconnect them? Im having some rough idling and misfire on about 1800 rpm when the engine is hot/warm.
 

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Knowing what vw are like there's probably an awkward clip some where that you need to poke with a small thin screwdriver then pull the plug, I'd be very wary of just pulling them off with pliers.:)

welcometomyturbodies
 

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Discussion Starter #3
I was in a hurry when i posted this new thread, anyways...

My problem is that when the engine gets warm (90celcius) the esp light comes on and the car starts to shake a bit and engine running is a bit rough, at around 1700-2200 rpm it's the worst.

I've been told that i should replace the injector wiring loom. I've taken readings with vag com.

Group 13, idle speed smooth running control. all values should be +- 2.8mg/H

Rough running 2.99 / -1.32 / -0.85 / -0.94 (cyl1/2/3/4)

normal, no esp light -0.71 / -0.09 / 0.45 /0.31

Group 18, PD Valve Status : Cyl 1 = 47.0 Cyl 2,3,4 = 0

I haven't yet bought new injector wiring loom, but will at the end of the week.

Rough running/idle never happens when the engine is cold.

Also got an error code for Coolant temperature sensor. It shows sometimes temps at 50 when real temps are 90, the meter is "off" when it happens.

VAGCOM faults :

Chassis Type: 3B - VW Passat B5
Scan: 01,02,03,08,15,16,17,19,35,36,37,46,55,56,58

Address 01 -------------------------------------------------------
Controller: 038 906 019 GT
Component: 1,9l R4 EDC 0200SG 1523
Coding: 00003
Shop #: WSC 00028
WVWZZZ3BZ2P245689 VWZ7Z0A4401714
2 Faults Found:
17669 - Pump-Jet Valve: Cylinder 1 (N240): Regulation Range Exceeded
P1261 - 35-10 - - - Intermittent
17678 - Pump-Jet Valve: Cylinder 4 (N243): Regulation Range Exceeded
P1270 - 35-10 - - - Intermittent
Readiness: N/A

Address 03 -------------------------------------------------------
Controller: 4B0 614 517 H
Component: ABS/ESP allrad 1728
Coding: 04255
Shop #: WSC 00028
1 Fault Found:
18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent

Skipping Address 15-Airbags

Address 17 -------------------------------------------------------
Controller: 3B0 920 827 A
Component: KOMBI+WEGFAHRSP VDO V06
Coding: 05115
Shop #: WSC 39306
WVWZZZ3BZ2P245689 VWZ7Z0A4401714
1 Fault Found:
01039 - Coolant Temperature Sensor (G2)
30-10 - Open or Short to B+ - Intermittent

Address 19 -------------------------------------------------------
Controller: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: WSC 00028
No fault code found.

Address 46 -------------------------------------------------------
Controller: 1C0 959 799 B
Component: 03 Komfortgerát HLO 0001
Coding: 00259
Shop #: WSC 00028
1 Fault Found:
00928 - Locking Module for Central Locking: Front Driver Side (F220)
27-00 - Implausible Signal

End -------------------------------------------------------
 

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Welcome to the forum. welcometomyturbodies

VAG Error Code: 17669
EOBD II Error Code: P1261

Fault Location:
Injector 1 - control limit exceeded

Possible Cause:
Control period too long.
Wiring.
Injector.


VAG Error Code: 17678
EOBD II Error Code: P1270

Fault Location:
Injector 4 - control limit exceeded

Possible Cause:
Control period too long.
Wiring.
Injector.


EOBD II Error Code: P1857

Fault Location:
Engine control module (ECM) - load signal

Possible Cause:
Wiring.
Intake leak.
Mass air flow (MAF) sensor (G70).


EOBD II Error Code: 01039

Fault Location:
Engine Coolant Temperature Sensor (G62)

Possible Cause:
Difficulties with starting a cold engine.
Starting the engine when engine is warmish or warm, idle rpm immediately is 1200 - 3000 rpm.
RPM at idle is irregular.
With all engine temperatures seldom idle rpm will vary between 900 - 1000 rpm.
With engine warm (90 °C) the engine temperature suddenly drops (70 °C) and slowly comes back to 90 °C.
Bad acceleration during warming up.
Diesel: an indication is extreme long time burning time of the glow indication light.

Wiring and/or connections faulty.
Engine Coolant Temperature Sensor (G62) faulty.

Possible Solutions:
Check wiring and connections.
Check / Replace Engine Coolant Temperature Sensor (G62).

Special Notes:
In MY 1995-2002 (?) in Europe at VW-cars the G2/G62 had the bad reputation of breaking down often.
The default G2/G62 is black and all replacements are green.


EOBD II Error Code: 00928

Fault Location:
Locking Module for Central Locking; Front Driver Side (F220): Implausible Signal

Possible Cause:
Door Locks not working properly.

Wiring/Connectors from/to Locking Module for Central Locking; Front Driver Side (F220) faulty.
Voltage Supply for Locking Module for Central Locking; Front Driver Side (F220) faulty.
Door Lock Mechanics are stiff/partially seized.
Locking Module for Central Locking; Front Driver Side (F220) faulty.

Possible Solutions:
Check Wiring/Connectors from/to Locking Module for Central Locking; Front Driver Side (F220).
Check Voltage Supply for Locking Module for Central Locking; Front Driver Side (F220).
Check Door Lock Mechanics/Operation.
Check Locking Module for Central Locking; Front Driver Side (F220).

As taken from my http://www.myturbodiesel.com/forum/f9/free-eobd-ii-error-codes-software-2919/index2.html ;)
 

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I can tell you that a bad coolant temp sensor is a very common problem. You seem to have narrowed it down with comparing the temp to what it should be. It could be causing other problems downstream so I would try replacing it.

Bad ABS module controllers are also a very common problem in this body style. They never seemed to have fixed it, even in their Audis. I would try clearing the code and seeing if it comes back. Worst case, there are plenty of places that will rebuild the controller side of the pump.
 

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Discussion Starter #6
I changed the injector wiring yesterday. Very ****ty job. I couldn't figure out how to get the whole package fitted back in. I had to cut the plastic cover that protects the wiring into half, to get enough room to slide it back in.

Have to follow now do i still get those errors and rough engine running.

Didn't change the coolant temp sensor, will change next week.

About the abs error code... I've been told that the ecu gives abs/esp error when there is something wrong in the engine to prevent further damage. For example if you have misfire in cylinders the abs goes off. Overboost, abs off...
 

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I changed the injector wiring yesterday. Very ****ty job. I couldn't figure out how to get the whole package fitted back in. I had to cut the plastic cover that protects the wiring into half, to get enough room to slide it back in.

Have to follow now do i still get those errors and rough engine running.

Didn't change the coolant temp sensor, will change next week.

About the abs error code... I've been told that the ecu gives abs/esp error when there is something wrong in the engine to prevent further damage. For example if you have misfire in cylinders the abs goes off. Overboost, abs off...
So did the new injector wiring harness help or not?

I would disagree about the ABS error being related to cylinder misfire. They are unrelated.
 

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Discussion Starter #8
I believe changing the wiring harness fixed my problems. Haven't had abs light since ;) I won't argue about abs error relation with misfire, my first vw and only have owned it for few months :)

I will read error codes tomorrow at work, just to get a confirmation.
 

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Hi,
I'm also in similar situation with misfire in 2 cylinders which show ESP light:
VAG-COM Version: Release 409.1-US


Chassis Type: 3B - VW Passat B5
Scan: 01,02,03,08,15,16,17,19,35,36,37,46,55,56,57,58,76

-------------------------------------------------------------------------------
Address 01: Engine
Controller: 038 906 019 EP
Component: 1,9l R4 EDC 0000SG 1464
Coding: 00002
Shop #: WSC 05314
WVWZZZ3BZ2E279329 VWZ7Z0A4463987
2 Faults Found:
17669 - Pump-Jet Valve: Cylinder 1 (N240): Regulation Range Exceeded
P1261 - 35-00 - -
17678 - Pump-Jet Valve: Cylinder 4 (N243): Regulation Range Exceeded
P1270 - 35-00 - -
Readiness: N/A

-------------------------------------------------------------------------------
Address 03: ABS Brakes
Controller: 4B0 614 517 G
Component: ABS/ESP front 1728
Coding: 04255
Shop #: WSC 05311
2 Faults Found:
00778 - Steering Angle Sensor (G85)
27-10 - Implausible Signal - Intermittent
18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent

With solution solve problem at you?
Thank you.
 

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I believe changing the wiring harness fixed my problems. Haven't had abs light since ;) I won't argue about abs error relation with misfire, my first vw and only have owned it for few months :)

I will read error codes tomorrow at work, just to get a confirmation.
Well looks like as per so many threads im having exactly the same problem, car starts up fine, then esp orange triangle comes on, engine moves off ok for about 200 yds or sometimes a mile, then get misfiring for about a mile, then seems to clear and then fine for rest of journey, If I then fire up within about an hour don't get problem.

Also as reported get intermittent ABS light coming on so I do believe it has something to do with the misfiring caused by wiring harness issues
 
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