passat injector wiring

Discussion in 'VW Mk4 Jetta, Golf, New Beetle, Passat TDI forum' started by bnito, Apr 25, 2011.

  1. bnito

    bnito New Member

    Joined:
    Apr 25, 2011
    Messages:
    4
    Car:
    Passat pd130 4motion 2001
    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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  2. Seatman

    Seatman Active Member

    Joined:
    Jul 9, 2010
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    5,214
    Car:
    2000 Mk4 Golf Estate 1.9tdi 174 bhp
    Location:
    Scotland
    Mods:
    PP764's, turbo and mapping
    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
  3. bnito

    bnito New Member

    Joined:
    Apr 25, 2011
    Messages:
    4
    Car:
    Passat pd130 4motion 2001
    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 -------------------------------------------------------
  4. Keithuk

    Keithuk Super Moderator

    Joined:
    Aug 29, 2010
    Messages:
    5,328
    Car:
    2010 Golf GTD (170) CBBB
    Location:
    Stoke on Trent, England
    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 ;)
  5. chittychittybangbang

    chittychittybangbang Administrator

    Joined:
    May 23, 2007
    Messages:
    21,555
    Car:
    2006 Jetta TDI
    Location:
    CT
    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.
  6. bnito

    bnito New Member

    Joined:
    Apr 25, 2011
    Messages:
    4
    Car:
    Passat pd130 4motion 2001
    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...
  7. chittychittybangbang

    chittychittybangbang Administrator

    Joined:
    May 23, 2007
    Messages:
    21,555
    Car:
    2006 Jetta TDI
    Location:
    CT
    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.
  8. bnito

    bnito New Member

    Joined:
    Apr 25, 2011
    Messages:
    4
    Car:
    Passat pd130 4motion 2001
    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.
  9. plamenzw

    plamenzw New Member

    Joined:
    Aug 19, 2011
    Messages:
    1
    Car:
    passat/2002
    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.
  10. adeace

    adeace New Member

    Joined:
    Feb 20, 2012
    Messages:
    1
    Car:
    passat PT TDI 2003
    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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