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Thread: 07 A4 3.2L P0172 rich code

  1. #101
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    Quote Originally Posted by MartinsX View Post
    Please make another one autoscan, after Your visit to dealers garage. Better do it twice - clear all faults, make a testdrive and do a new autoscan. Just to exclude faults stored while testing at dealers.
    Hi MartinsX, after visiting the dealer, I was told that "yeah your car runs great! It has a P0172 and N30 contribution balance / fault on injector 1 but it runs great! That will be 150$" I knew it was going to be like that but I didn't know where else to turn.

    The injector was replaced a while back so I don't know why I would still see that error.

    Thanks all for replying!

  2. #102
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    Do you have to relearn the IMA on the injector that was changed?

  3. #103
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    cam correlation mvb 90 something. log cold idle and 2500rpm. hot check after ten min drive idle and 2500rpm.

  4. #104
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    Will do ivagp! What will this do??? I have the intake fully open right now and I have access to the injectors. Now is the time to try stuff THanks!

  5. #105
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    have u looked here. http://wiki.ross-tech.com/wiki/index...6/P0172/000370 Possible Causes
    Fuel system
    Excessive fuel pressure
    Leaking or contaminated fuel injectors
    Leaking fuel pressure regulator
    Low fuel pressure or running out of fuel
    Vapor recovery system
    Air leaks after the MAF
    Vacuum leaks
    Improper seated engine oil dipstick
    Stuck EGR valve
    Oil overfill
    Cam timing
    Cylinder compression
    Exhaust leaks before or near HO2Ss.

  6. #106
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    Quote Originally Posted by Captkrunch View Post
    Will do ivagp! What will this do??? I have the intake fully open right now and I have access to the injectors. Now is the time to try stuff THanks!
    this is to check if cam timing is within spec. are u able to do a cylinder leak down test.

  7. #107
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    i dont know maybe ur already their remove the valve covers and check the chain timing. do u have any chain noise, especially on a cold start

  8. #108
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    Hi IVAGP

    Ok i'll reply to your questions.

    1. No cam noise whatsoever. Everything is tight and nothing is leaking.
    2. Will do the MVB 90 as soon as I get home.
    3. We already did the valve covers gaskets but the timing chain is actually at the back of the motor. but as I said, no leaks or no noise from there.

    Thanks

  9. #109
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    its in the nineties .3 and .4 should say something like actual and specified. make sure to look for both banks.

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