[s-cars] WGFV

[Theodore Chen]

by the way, you don't need the VAG-COM to run the output test.  
scott mockry's website, sjmautotechnik.com, has a description of how
to run the output test using jumper wires.

-teddy

--- Tom Green <trgreen at comcast.net> wrote:

> Gotta agree with you there, Teddy.  It ain't much of a test, but it  
> does verify electrical continuity, and running with the vacuum line  
> off will verify how much
> boost the WGFV adds.  Since Eric reported pretty steady boost levels,  
> I would look for bypass valve problems and vacuum leaks before  
> replacing the
> WGFV.  A swap to check would be nice, if you had a spare or a  
> friend's s-car handy, before spending the $90.  Or, maybe these  
> things just wear out
> after 12 years.
> 
> Once you connect VAG-COM checking for fault codes, you might as well  
> use the capability.
> 
> Tom
> 
> On Mar 15, 2007, at 10:31 PM, Theodore Chen wrote:
> 
> >
> > Tom Green <trgreen at comcast.net> wrote:
> > If you have access to a VAG-COM, the output test cycles the WGFV so  
> > you can hear/feel it operate, and you can disconnect the vacuum  
> > line from the wastegate to also verify operation.
> >
> > the output test is useful only if the WGFV fails the test.  i had  
> > problems with inconsistent low boost.  sometimes i got normal  
> > boost, and other times i just got wastegate spring pressure (about  
> > 6 psi).  the WGFV passed the output test.  after i tested a number  
> > of other things, i kept coming back to the WGFV, which passed the  
> > output test every time.  the output test actuates the WGFV about  
> > once every second, and i suspected that the WGFV was failing at  
> > higher duty cycles.  replacing the WGFV fixed the problem.
> >
> > -teddy
> >
> >
> > The fish are biting.
> > Get more visitors on your site using Yahoo! Search Marketing.
> 
> 



 
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