No Boost over 1.0

SuffolkD at SuffolkD at
Wed Sep 8 14:06:46 EDT 2004

Peter et al:
0.1 bar is nearly less than 1.4 PSI
Either the leak is severe or maybe the turbo shaft is siezed?
Some valve or discharge diaphram open?  Like the wastegate?
Some ideas.......... - Scott by BOSTON

> From: Peter Schulz <>
> Bucking is indicative of a boost leak...and since you are not making over 
> 1bar (atmospheric pressure), its a BIG leak
> Make sure that the bottom of the michelin man hose is actually sealing 
> around the intake pipe, I've done this before and had the lower part curl 
> over.
> Do the obvious thing of visually checking all the major hoses and making 
> sure the clamps are tight.
> Check the vacuum hoses around the back of the intake manifold under the ISV
> -Peter
> At 09:31 AM 9/8/2004, Audi Quattro wrote:
> >I recently replaced the MM hose, so thats not the culprit robbing me of my 
> >boost.
> >Lower hose seems fine
> >any other ideas? Car pulls till about 1.0 -1.1 and then start to hickup 
> >surging back and forth badly.
> >

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