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Exhaust Emission Light on

suthsy Jul 24, 2010

  1. suthsy

    suthsy New Member

    :hi:Hello Guys,

    My exhaust emission light has come on for some reason and was wondering what to do?

    I have an Audi A3 3.2 2004 Reg and wondered if this was a common problem?

    Dont want to take it to the stealers for an over expensive vag com.

    I have looked online and found that I may be able to perform my own vag com


    is this legal and would the cable above suffice?
  2. suthsy

    suthsy New Member

    lol, just seen a tumble weed go across the page when i opened this thread.

    ok so i bought the cable and this is what it found...

    00-Steering Angle Sensor -- Status: OK 0000
    01-Engine -- Status: Malfunction 0010
    02-Auto Trans -- Status: OK 0000
    03-ABS Brakes -- Status: OK 0000
    08-Auto HVAC -- Status: Malfunction 0010
    09-Cent. Elect. -- Status: OK 0000
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    22-AWD -- Status: Malfunction 0010
    25-Immobilizer -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    56-Radio -- Status: OK 0000
    76-Park Assist -- Status: OK 0000

    2 Faults Found
    17548 - Oxygen (Lambda) Sensor; B2 S2: Internal Resistance too High
    P1140 - 008 - Implausible Signal - MIL ON
    16544 - Oxygen (Lambda) Sensor B2 S2: No Activity
    P0160 - 004 - No Signal/Communication - Intermittent
    Readiness: 0000 0000

    Address 08: Auto HVAC
    Cannot be reached

    any help, ideas, suggestions.... would be much appreciated...
  3. suthsy

    suthsy New Member

    appreciate your help guys lol

    anyway thought i would inform anyone that has a similar problem and let you know that after weeks of worrying how much money i will have to spend o2 sensors, cat converters, new MAF etc... i have found the problem as to why the exhaust emission light decided to show...

    the wires joining the o2 sensor on the left cat had become unstuck and left hanging above the exhaust, eventually they completely burnt through from when the exhaust became hot, which then triggered the o2 sensor as it was unable to function properly. i have pictures to show but dont know how to paste them into the post
  4. lincoln_dj

    lincoln_dj Active Member VCDS Map User

  5. suthsy

    suthsy New Member

    Yes mate that is the exact one i bought. Had a look at the ebay ones, looked a bit shabby IMO.

    I have an 04 3.2 (8P) and the software provided worked perfectly, managed to find the problem straight away.
    Last edited: Aug 13, 2010
  6. Sarah's A3

    Sarah's A3 MODERATOR V6 S3 Hybrid Moderator

    Just seen this thread, I was going to suggest a wiring problem. I had similar 'Implausible Signal ' message on mine when I vagcomed it when my ESP and ABS lights came on. Wires had broke with rubbing.

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