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Boost dropping off?

Discussion in 'A4/S4 forum(B5 Chassis)' started by Oranoco, Mar 20, 2008.

  1. Oranoco

    Oranoco Well-Known Member

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    I've found when giving my A4 a bit of right foot the boost peaks at about 0.8bar and once in 2nd and third tails right back to 0.4. Soggy wastegate actuator perhaps?

    If it was one of my old Fords that's the route I'd take but the Audi has the N75 valve to control things so don't want to go swapping bits out without being sure.
     
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  3. Blue_Thunder

    Blue_Thunder Well-Known Member

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    Sounds like a boost leak.
     
  4. AUDI TURBO

    AUDI TURBO Member

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    check dump vlave and pipe etc i had VERY simalr problem with my 14 when first got it after replacing pipes, clips, dumpvlave, odd gaskets replaced ht 8psi and held like it should
     

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