Volks AutosAH Fabrications
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  1. #1
    Reverse Gear

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    A4 1.9 TDI (90 BHP) - !997 power problem.

    Help would be appreciated. Initial problem was no turbo. Turbo and inlet manifold stripped,decoked etc.EGR valve changed.
    Turbo now working ( although not as impressive as before.)in lower speed range but no acceleration or speed increase beyond 70 m.p.h. I notice that turbo gate valve rod not moving despite high revs.
    MAF changed at onset of problem but of course made no difference.
    Any ideas please ???

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  3. #2
    fjtwelve's Avatar
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    Re: A4 1.9 TDI (90 BHP) - !997 power problem.

    I have read but not personally sorted out that there is a thin hose from the exhaust near the turbo to the ECU, and 90 / 110hp TDIs suffer from a power loss over 3000 rpm if this hose is knackered. If replacing this works please let me know because my wife is reporting similar symptoms on her P reg A4 90hp, but i haven't had time to fiddle yet.

  4. #3
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    Re: A4 1.9 TDI (90 BHP) - !997 power problem.

    Many thanks for that - will check it out and let you know. Your wife's car is about the same vintage as mine.

    Best wishes.

 

 

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