WGFV error

Mike Del Tergo mdeltergo at hotmail.com
Tue Jul 22 21:04:37 EDT 2003

thanks, I may actually have a spare.  I knew all my spares would prove
usefull.  I am guessing WGFV as the cutout is described as feeling just like
the FP, severe misfire under boost fits my symptoms to a T!
I am hoping most of the codes have been stored for eons, as I have been
doing all the prophylactic stuff, all temp senders, BPV, hoses etc. and
really just got around to the codes. We''ll see, i haven't had a chance to
rerun the car yet.  The cutout can occur at 1.2-1.4 bar, then again I have
seen 1.5 with no problems.  Love it when it runs right though!  What are my
chances of getting 2 x 200 20v to right great at the same time?

>From what I've heard and experienced, the WGFV typically craps out
>"silently" (i.e., without benefit of ECU code). The failure is frequently
>caused by a bad solenoid coil (winding) that keeps the valve held wide
>open. This (open valve) is the "default" failure mode, which limits boost
>to about 1.4 bar. There is an easy-to-do solenoid resistance check (see
>Bentley) which will show up a bad WGFV. You can also trigger the WGFV
>operation as one of a series of ECU output tests (see Bentley); this test
>produces audible clicks when it operates the WGFV. However, when I did this
>I heard the clicks even though the WGFV was defective.
>If you can find one (they were hard to locate a couple of years ago) a WGFV
>costs about $80.
>Phil Rose
>Rochester, NY
>mailto:pjrose at frontiernet.net

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