[s-cars] Wastegate Frequency Valve (N75)

[Theodore Chen]

don't think that's necessary.

regardless of whether the WG uses vacuum in normal operation, simply
disconnecting the WG should get him a lot more boost.  if it does, then
that implies that there's not a leak in the intake tract and he should
look elsewhere for his problem.

-teddy

--- Mark Strangways <StrangConst at rogers.com> wrote:

> As debated..
> There can be some negative (relative to atmosphere) pressure applied to the 
> bottom chamber of the wastegate from the intake stream, this will be present 
> from the correct operation of the WGFV.
> So, you may want to connect that port (WG) to the turbo intake side of the 
> WGFV.
> 
> Mark
> ----- Original Message ----- 
> From: "chris chambers" <fastscirocco_2000 at yahoo.com>
> To: "Kevin Barnett" <bluevr6 at yahoo.com>; "s-car-list" 
> <s-car-list at audifans.com>
> Sent: Wednesday, September 06, 2006 8:40 PM
> Subject: Re: [s-cars] Wastegate Frequency Valve (N75)
> 
> 
> > The N75 is connected to the wastegate via a hose with a bango
> > bolt. Use I believe a 17mm wrench and loosen the bango bolt, if I
> > recall correctly this should give you full boost.
> >
> > If the boost increases then you probably have a bad n75 valve.
> >
> >
> >
> >
> > --- Kevin Barnett <bluevr6 at yahoo.com> wrote:
> >
> >> HI oh Guru's of the AAN:
> >>
> >> I am still chasing my boost leak / 5 psi issue.
> >>
> >> If I unplug the N75, I get teh same behaviour as if
> >> plugged in.  As I am running a second used valve
> >> provided by a friend through my mechanic (thanks Rob),
> >> if I jump across the wire connectors, will it override
> >> the valve circuit so that I can run the car briefly to
> >> see if the valve failed?
> >>
> >> Ideas, suggestions, incantations appreciated.
> >>
> >> Thanks,
> >> Kevin
> >> 94 S4 - not happy.
> >>
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