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  1. #1
    Registered Member One Ring
    Join Date
    Nov 21 2008
    AZ Member #
    35529
    Location
    Glenwood Springs Colorado

    Please Help!!!! Audi S4 Boost/fuel Cut Problem

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    I have a stage 2 plus 2000 audi s4 that has k04's and stock fueling with a weird problem. was seeing if anyone could help....

    Whenever i get on it it'll go up to 10psi of boost and then just shut down. it feels like a govener kicks in because it starts to jerk really bad and feels like neither of the turbos are spooling. it does this in any gear. My buddy was driving behind me and said that it was pouring black smoke and smelled like straight fuel. i have an apr state 2 plus chip.

    checked all the connections and hoses and everything and everything is good. didnt throw any codes or anything.

    please help!

  2. #2
    Veteran Member Four Rings will175's Avatar
    Join Date
    Apr 25 2007
    AZ Member #
    17567
    Location
    Las Vegas..Hawaii..Nor Cal

    Re: Please Help!!!! Audi S4 Boost/fuel Cut Problem

    I have the same exact problem. But I am complete stg 3 and it does it around 14psi, and no black smoke pouring out though. Weird..For me Im going to pressure test it then check the DVs. After that if it still does it then dont know. Mabey n75. I am running vast mbc in parallel with that little whole on the mbc plugged.???
    Train Hard, Go Hard, But always be Humble.

  3. #3
    Registered Member One Ring
    Join Date
    Nov 21 2008
    AZ Member #
    35529
    Location
    Glenwood Springs Colorado

    Re: Please Help!!!! Audi S4 Boost/fuel Cut Problem

    so i finally did a smoke test and found out that my samco y hose from the throttle body had worn the bottom lip off and was letting all the boost out. idk if anyone else has ever had this happen but does anyone know if samco warranties their stuff?

  4. #4
    Veteran Member Four Rings will175's Avatar
    Join Date
    Apr 25 2007
    AZ Member #
    17567
    Location
    Las Vegas..Hawaii..Nor Cal

    Re: Please Help!!!! Audi S4 Boost/fuel Cut Problem

    Congrates on the boost leak find. I still need to find mine. If anyone looks here what logs should I do to help you guys understand whats going on? I turned down my boost controller (parallel) to 10psi and it does not cut out like before, it boost fine to 10 psi. Freakin weird. So I just need to log, pressure test then see whats up.
    Train Hard, Go Hard, But always be Humble.

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