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  1. #1
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    Default Audi A4 3.0 V6 ME7.1.1 lambda/cat remove

    Hi,
    I need some help.
    Car: Audi A4 2002 3.0 V6 8E0909559L ME7.1.1 with automatic gearbox.
    The main problem: Less power than other A4 3.0 V6 220hp.

    I want to delete rear O2 sensor. I found selection at adress:22006. Is it correct?
    Please give some hint or if anyone could make a simple mod with deleted rear lambda and a little more power. Car is too slow for the genuine 220hp.
    Usa version could be reason?
    I checked sensors (temp, barometric and others..), checked fuel pressure, checked compression/stroke, maf sensor...everything fine. Has got new spark plugs... Filters.
    Please help.

    Regards
    Attached Files Attached Files
    Magicmotorsport Flex Full, Magpro2, Swiftec, Winols, full ETL, Carprog and others....

  2. #2
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    Default

    check.......... ask pass by PM
    Winols,Swiftec,CMD,Alientech Kessv2/Ktag/Powergate,Mpps
    r54-tunedfiles.com

  3. The Following 2 Users Say Thank You to 2guys For This Useful Post:

    atd (25th March, 2014), volthz (5th November, 2021)

  4. #3
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    Default

    Please explain what you want? The entire rear o2 removed? Or just catalyst monitoring? Do you have specific fault codes?

    22010 is CDKAT, catalyst diagnosis.
    22583 is CWDLSAHK, for sensor aging.

    (0 CDKAT and CWDLSAHK if you want to gut the cats)

    2201E is CDSLS
    22027 is CWKONABG

    (0 both if you want to remove secondary air injection)

  5. The Following 2 Users Say Thank You to ddillenger84 For This Useful Post:

    atd (21st March, 2014), chli1976 (21st March, 2014)

  6. #4
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    Default

    Should also disable post cat lambda control via CLRHK if you're going catless to prevent wacky trimming.

    24339, increment it by 1 (set bit 0).

  7. The Following 2 Users Say Thank You to ddillenger84 For This Useful Post:

    atd (21st March, 2014), chli1976 (21st March, 2014)

  8. #5
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    Default

    for low power.........are you test the distribution? cilinder compresion?
    Winols,Swiftec,CMD,Alientech Kessv2/Ktag/Powergate,Mpps
    r54-tunedfiles.com

  9. #6
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    Default

    Sorry for late, I had problems with dk website load. Thank you for descriptions.
    There are no fault codes, just less power than the other the same audi..
    Customer had faults from secondary lambda probe about one year ago and bought new cats and lambdas.
    Then faults disappeared but still no power increase. Dyno shows 180hp.
    Engine checked, distribution, compression...
    Last edited by atd; 21st March, 2014 at 01:36 PM.
    Magicmotorsport Flex Full, Magpro2, Swiftec, Winols, full ETL, Carprog and others....

  10. #7
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    Default

    The AWD audi's are subject to a 20-25 percent drivetrain loss. 180hp sounds right.

  11. #8
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    Default

    Quote Originally Posted by ddillenger84 View Post
    Please explain what you want? The entire rear o2 removed? Or just catalyst monitoring? Do you have specific fault codes?

    22010 is CDKAT, catalyst diagnosis.
    22583 is CWDLSAHK, for sensor aging.

    (0 CDKAT and CWDLSAHK if you want to gut the cats)
    For some reason, I have zero'd CDKAT and CWDLSAHK with cats and o2s still installed, cats are just bad.....and I'm still getting p0421? Anyone else have this problem?

 

 

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