boost and stalling problem

Ed Kellock ekellock at
Fri Jan 16 11:41:58 PST 2009

Sounds like you may have disturbed or forgotten to reassemble/tighten
something else while you were in there.  If the issue came up suddenly after
you replaced the wgfv, then I'd check around and see what else might be
demanding your attention.  

1st guess would have been the bypass valve, but if you put in a new one and
the problem is the same...


> -----Original Message-----
> From: 200q20v-bounces at 
> [mailto:200q20v-bounces at] On Behalf Of Danny
> Sent: Friday, January 16, 2009 12:31 PM
> To: 200q20v at
> Subject: boost and stalling problem
> whats up all. the other night i was at a friends house and we 
> were looking over my engine and he noticed that my wgfv was 
> all corroded. i installed one that he had in his garage, that 
> was from a different model but said it would fit my car. the 
> configuration was exactly 90 degrees different. i searched 
> the archives and found that this similar problem had happened 
> to someone else before and the symptoms were exactly the 
> same. so here is the problem. while i was driving with the 
> incorrect wgfv, the instrument cluster read 1.6 in 2nd gear. 
> i took my foot of the gas to slow down and the car bucked 
> along with a psssh sound. parked, stopped the engine, started 
> it back up and the car was bucking like crazy and stalling or 
> about to stall when i didnt give it any gas. havent really 
> driven it since. today i installed a new wgfv and tbpv, and 
> searched for loose vacuum lines. (couldnt find any). the car 
> still goes to stall out when i come to a stop or depress the  
> clutch, i didnt really go that fast to notice any bucking. i 
> know that when i took apart the intercooler in the summer, 
> the clamp for the ic hose were broken. could this be a source 
> of my problem, possibly. i tried to pressurize the system 
> with the homemade testor, but it wasnt holding any air. the 
> car was off, does the car need to be running? or do i just 
> have that big of a leak somewhere. any info would be greatly 
> appreciated. thanks
>  danny
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