WGFV, aka N75 valve
pjrose at frontiernet.net
Thu Nov 20 19:57:39 EST 2003
At 12:48 PM -0500 11/20/03, <auditude at cox.net> wrote:
>I supposedly have a new one coming in, but I was wondering what the
>lists experience with this valve is. Do they fail often?
>My internet searching for info on this valve turned up with a world
>of stuff about the 1.8t folks changing their valves to different
>part numbers to get more boost. ECS offers a "H" valve with the
>part number removed apparently (H is stock for ur-S4/S6's).
>My 200q20v initially had an "F" valve in it, but the replacement I'm
>told is a "J" valve, which is another version used by some 1.8t
>peeps. I guess some setups require one valve over another due to
>spiking or triggering the check engine light or limp home mode.
>Has anyone had to change theirs, or maybe experimented with using a
>different part number than the stock one?
>>AFAIK, the operation of this valve is simply a matter of being
>>fully ON or OFF, with the ECU controlling the ON/OFF duty cycle
>>(%). So I wonder how "more boost" can be accomplished by modifying
>>the valve. I suppose the valve could possibly be made more robust.
>>Does it fail often? Well, they probably go at least 100K--is that
>>often? I replaced my original (I assume) WGFV about 3 yrs ago, at
>>about 120K. It appears to have been an "F". I've lost the label
>>from the replacement package, so can't say what version I have now.
Ah, I just found that little scrap of label: it's the "J" version.
BTW, the old "F" valve was made in Monaco, whereas the latest valve
is made in France. I suppose that could account for the change in the
mailto:pjrose at frontiernet.net
More information about the 200q20v