Username or Email Address
Do you already have an account?
Forgot your password?
  • Log in or Sign up

    VWVortex


    Results 1 to 6 of 6

    Thread: Check engine light turned on today

    1. Junior Member
      Join Date
      Jan 25th, 2012
      Location
      Slovakia
      Posts
      79
      Vehicles
      2006/VW/Phaeton W12
      09-07-2012 07:23 PM #1
      Hey guys,

      My CEL turned on today, I did a scan

      VIN: WVWZZZ3DZ78001026 Mileage: 31960km/19859miles
      -------------------------------------------------------------------------------
      Address 01: Engine Labels: 07C-906-018-BAP1.lbl
      Part No SW: 07C 906 018 EC HW: 07C 906 018 EC
      Component: D1-6.0L-AG-EU4 A ª9323
      Revision: --H01--- Serial number: VWZ3Z0F3502244
      Coding: 0000173
      Shop #: WSC 49077 136 85090
      VCID: 6ADFC69B3CEF

      3 Faults Found:
      000369 - Fuel Trim; Bank 1: System Too Lean
      P0171 - 004 - No Signal/Communication - MIL ON
      Freeze Frame:
      Fault Status: 11100100
      Fault Priority: 0
      Fault Frequency: 1
      Mileage: 31704 km
      Time Indication: 0

      Freeze Frame:
      RPM: 512 /min
      Load: 17.2 %
      Speed: 0.0 km/h
      Temperature: 84.0°C
      Temperature: 33.0°C
      Absolute Pres.: 990.0 mbar
      Voltage: 13.843 V

      000372 - Fuel Trim; Bank 2: System Too Lean
      P0174 - 004 - No Signal/Communication - MIL ON
      Freeze Frame:
      Fault Status: 11100100
      Fault Priority: 0
      Fault Frequency: 1
      Mileage: 31701 km
      Time Indication: 0

      Freeze Frame:
      RPM: 532 /min
      Load: 16.1 %
      Speed: 0.0 km/h
      Temperature: 93.0°C
      Temperature: 32.0°C
      Absolute Pres.: 990.0 mbar
      Voltage: 13.716 V

      006435 - Please Check DTC Memory of ECU Number 2
      P1923 - 008 - Implausible Signal
      Freeze Frame:
      Fault Status: 01101000
      Fault Priority: 0
      Fault Frequency: 1
      Mileage: 31963 km
      Time Indication: 0

      Freeze Frame:
      RPM: 0 /min
      Load: 0.0 %
      Speed: 0.0 km/h
      Temperature: 77.0°C
      Temperature: 73.0°C
      Absolute Pres.: 990.0 mbar
      Voltage: 11.938 V

      Readiness: 0000 1001

      those are the fault codes Im getting.

      I have read through a few threads,
      http://forums.vwvortex.com/showthrea...n#post74535509
      http://forums.vwvortex.com/showthrea...n#post69107195
      http://forums.vwvortex.com/showthrea...n#post65905041

      and I see a lot of uncertainty.
      May it be the air pump?
      I have been to the 30000km service last week, they changed the transmission fluid and did all the necessary tasks. They changed the spark plugs as well.
      The car drives great, I dont feel any difference, except the CEL light coming on...
      Any ideas on this?

      Thanks!
      Lukas

    2. Moderator Paximus's Avatar
      Join Date
      Aug 26th, 2011
      Location
      Dorset, UK
      Posts
      2,879
      Vehicles
      2005 Phaeton V10 swb 4-seat, Jeep Commander Hemi, Ssangyong Korando
      09-08-2012 09:02 AM #2
      Well, the MIL is set by the statutory emissions routines, not the car itself complaining.

      So the scan said this:


      31701 km - Engine warm, car stopped, idle - ECU#1 did not receive confirmation that the fuel trim on Bank#1 was OK or not too rich

      31704 km - Engine warm, car stopped, idle - ECU#1 did not receive confirmation that the fuel trim on Bank#2 was OK or not too rich

      31963 km - Engine not cold, stopped, Power Supply 11.9V - ECU#2 CAN-Bus data not received by ECU#1. MIL off.


      Do you have the scan for address 11 for ECU#2?

      If it was the secondary air system not running at idle, wouldn't that flag a rich mixture rather than lean? Or would the high lambda reading cause the ECU to set the trim too lean to compensate?

      Both DTCs are at idle. One of the lambda trim adaptations is done at idle. But the two bank ECUs use separate lambda sensors, so there's no common mode failure to affect both banks there.

      The fuel vapour purge cycle also has separate solenoids, no common mode.

      The only common item in the mixture set is the engine block exit temperature sensor, but that's monitored by a look-up table so is unlikely not to be flagged.

      Other than that the common item are the CAN-Bus comms (ECU) and the fuel. You didn't have a duff tank of fuel with some diesel in it?!

      Chris

    3. Junior Member
      Join Date
      Jan 25th, 2012
      Location
      Slovakia
      Posts
      79
      Vehicles
      2006/VW/Phaeton W12
      09-08-2012 09:36 AM #3
      Thanks Chris for your answer, I had it in the Service when it was around 37000km, so the 2 events probably happened while it was at the dealer.
      The last one
      006435 - Please Check DTC Memory of ECU Number 2
      P1923 - 008 - Implausible Signal

      is interesting, because it says
      RPM: 0 /min
      Load: 0.0 %
      Speed: 0.0 km/h

      I cleared the errors, will drive around a few km, and see what happens.

      I will report back!!!

      edit: no diesel

    4. Junior Member
      Join Date
      Jan 25th, 2012
      Location
      Slovakia
      Posts
      79
      Vehicles
      2006/VW/Phaeton W12
      10-02-2012 05:53 PM #4
      so they left one airhose disconnectec during the 30000km service. VW authorized. ...

      at least they fixed it in one afternoon

    5. Moderator Paximus's Avatar
      Join Date
      Aug 26th, 2011
      Location
      Dorset, UK
      Posts
      2,879
      Vehicles
      2005 Phaeton V10 swb 4-seat, Jeep Commander Hemi, Ssangyong Korando
      10-02-2012 06:43 PM #5
      Good news (kind of...!) Well, you guessed right about the air flow. I hope they adjusted the bill!

      Chris

    6. Member
      Join Date
      Jan 2nd, 2012
      Location
      The Hague area, The Netherlands
      Posts
      105
      Vehicles
      2008 W12 4P Highline; Alfa Romeo Spider 2.0 1985
      10-03-2012 05:29 PM #6
      Earlier I had a CEL warning saying my Bank2 catalyst was working sub-standard. Ater resetting this disappeared, the VW dealership wanted to change the exhaust en precatalysts (around 3000USD...)
      I thought I was "out of the woods" but now this happened:


      Wednesday,03,October,2012,21:39:08:51737
      VCDS Version: Release 11.11.4
      Data version: 20120807



      --------------------------------------------------------------------------------
      --------------------------------------------------------------------------------


      Address 01: Engine Labels: 07C-906-018-BAP1.lbl
      Control Module Part Number: 07C 906 018 EF HW: 07C 906 018 EF
      Component and/or Version: D1-6.0l-AG5-EU4 A ª1526
      Software Coding: 0000173
      Work Shop Code: WSC 01065 000 00000
      VCID: 6DDBFA1D775BE770FA3
      1 Fault Found:

      001072 - Catalyst System; Bank 2
      P0430 - 002 - Efficiency Below Threshold - Intermittent - MIL ON
      Freeze Frame:
      Fault Status: 10100010
      Fault Priority: 0
      Fault Frequency: 1
      Mileage: 102853 km
      Time Indication: 0
      Date: 2012.09.30
      Time: 18:11:36

      Freeze Frame:
      RPM: 1926 /min
      Load: 29.4 %
      Speed: 104.0 km/h
      Temperature: 87.0°C
      Temperature: 24.0°C
      Absolute Pres.: 1010.0 mbar
      Voltage: 14.224 V


      Readiness: 0000 0000


      Readiness Status: 0110 1001
      Exhaust Gas Recirculation: Passed
      Oxygen Sensor Heating: Failed or Incomplete
      Oxygen Sensor(s): Failed or Incomplete
      Air Conditioning: Passed
      Seconday Air Injection: Failed or Incomplete
      Evaporative Emissions: Passed
      Catalyst Heating: Passed
      Catalytic Converter(s): Failed or Incomplete


      Should I have the repairs done as proposed by VW??? MotoTalk also mentions replacing the "flexrohre" in the exhaust system (wire-mesh fleible couplings) which (when leaking) could cause fresh air to mix with the primary exhaust gasses. Anyone have any experience with this?

      Advice would be much appreciated

      John

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •