[s-cars] stuck in neverboost - help!

[Paul Gailus]

Steve,

I assume that you are refering to either:
1.) the hose going from the solenoid operated wastegate frequnecy
valve (WGFV) to the wastegate diaphragm housing, or
2.) the hose from the WGFV to the port on the scroll of the
turbo compressor.
A substantial leak at any of these hose connections could definitely be
causing your problem, as Feico mentioned before.

Paul

----- Original Message -----
From: steve powers <steve at thepowers.net>
To: 'Igor Kessel' <igor at s-cars.org>
Cc: <s-car-list at audifans.com>; 'northwest audi enthusiasts'
<audi-nw at u.washington.edu>
Sent: Saturday, June 14, 2003 1:16 PM
Subject: RE: [s-cars] stuck in neverboost - help!


> Igor (and several others suggested):
> >
> >  Steve, in the descending probability order, you most likely
> >  have: 1. the little vacuum hose under the black plastic
> >  cover int he centre of the firewall blown off the connector
> >  2. a burst turbo hose (crossover pipe to intercooler), a.k.a
> >  The Michelin Man Hose. 3. a blown diafragme in the turbo bypass valve
> >
> >  > I looked under the hood, but nothing was obvious. I'll tackle it
> >  > tomorrow. I've got a compressor and probably will just
> >  seal the main
> >  > hose at the air filter and throttle body. Put about 20 psi
> >  in it and
> >  > listen for the big hiss.
> >
> >  make sure you disconnect and plug the crankcase ventilation
> >  hose beforehand. You don't want to pressurise the oil seals
> >  from the inside outwards :)
>
> After removing the hoses from the turbo, the MAF, the throttle
> body, etc. and plugging them, I have not found the leak. The only
> things connected to shop air (20 psi) are the turbo pressure hose,
> the crossover, the intercooler and the michelin man hose. No leaks.
>
> However, when removing the MAF air hose from the turbo - I did notice
> that the small diameter hose attached to the port for the wastegate
> bypass was not tightened. It came right off when I removed the air
> hose for the MAF. It would have been removed as part of the head
> replacement and it appears not to have been retightened.
>
> Could this be my problem?
>
> Steve
>
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