Losing Boost

Todd Phenneger tquattroguy at yahoo.com
Sat Mar 29 21:24:45 EST 2003

  Your Bypass Valve is blown.  Granted, it could be something
else but its a VERY common problem on the Audi 20vt motors and
most Audi Turbo motors for that matter.  You can replace it with
stock or you can put something better in like a Forge Valve or
  Maybe some others can describe how to test you BPV to see if
its good or not.  But thats where I'd start.

--- "Alilio, Allan" <Allan.Alilio at nasdaq.com> wrote:
> I am new to owning an Audi and its my first German car so if I
> seem like I don't know much please bare with me.  Anyway my
> question is under full throttle I am losing boost.  I am
> hitting about 1.6 to 1.7 bar then it slowly drops to 1.2   I
> thought with the chip I should be hitting over 2 bar.  The
> following mods on the car are K&N cone filter, Hoppen Chip,
> custom exhaust system.  I hear noise from my K&N filter like a
> blow off valve.  Its sounds like its releasing the boost as i
> shift.  I don't know if its suppossed to do that or not.  I
> have checked all my intercooler piping and they are all
> intact.
> Thanks,
> Allan
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