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Thread: P0030

  1. 03-22-2016 10:15 PM #1
    wampaku
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    P0030

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    2003 a6 3.0 has the p0030. Ran a vag com on it for my friend. Open circuit, b1 s1. Replaced sensor and still coming up with the code. Any guidance would be appreciated.
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  2. 03-22-2016 11:15 PM #2
    a4kamila6
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    Did you check for continuity between that plug and the appropriate ecu pins? That way you will know if your short is in the lambda sensor itself or in the harness.
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  3. 03-23-2016 12:00 AM #3
    Royal769sr
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    Bingo

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  4. 03-23-2016 12:12 PM #4
    wampaku
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    Quote Originally Posted by a4kamila6 View Post
    Did you check for continuity between that plug and the appropriate ecu pins? That way you will know if your short is in the lambda sensor itself or in the harness.
    Can you tell me what pin to check?
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  5. 03-23-2016 01:47 PM #5
    carmudgeon
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    1995.5 S6 Avant
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    I always forget which side is b1 vs b2 so:

    Drivers side front O2: pin 51 (green) and pin 70 (yellow)
    Passenger side front O2: pin 12 (violet) and pin 13 (red)
    Previous vehicles: 2012 TTS Roadster - 2017 Golf R - 2002 S6 Avant - 2013 S4 - 2008 Subaru STi - 2007 Mazdaspeed3
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  6. 03-24-2016 09:22 AM #6
    wampaku
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    Thank you. If they are fine what should I look at next?
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