[200q20v] Car Bucking Under Boost

[C1J1Miller at aol.com]

In a message dated 10/22/00 6:42:50 PM Eastern Daylight Time, 
matkisson at yahoo.com writes:

> In the past few days my car has started acting funny.  When I stepped on the
>  gas to pass a line of cars, my car started bucking wildly.  When I let off
>  the gas it went away, but when I stepped on it again, it was bucking.  If I
>  accelerate gradually I can still go plenty fast, but I miss my 
acceleration.
>  In watching the boost gauge in the computer I am still making boost when
>  this occurs.  Could this be a fuel pump problem??  I had someone tell me
>  that by the sound my fuel pump was making, it was going to go bad soon.  
The
>  first day I noticed this problem it went away after a couple of minutes.
>  Today it seems to not be going away at all.
>  Any idea where I should start checking??
>  Mike


I doubt it is a fuel problem; seems more like a split hose; likely either the 
ribbed michelin man hose, or the lower hose with the fitting for the bypass 
valve.  Could also be a bad bypass valve.  any codes?  
chris