More mystery plugs

steven89

Member
Jul 8, 2006
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16
Houston, TX
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They both plug into that boost control looking thing.. both have same plug..same color. just 2 identical plugs confused the hell outta me. Any idea which is which?

Thanks in advance!
 

TurboWarrior

New Member
Apr 1, 2005
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42
Canada
I think they are both for the VSV's. The rear one is for the EGR VSV. and the Front is a mystery vsv lol. Im not sure what that one does. but I think it prevents heatsoak somehow? I could't find that particular one in the manual.
 

drjonez

Supramania Contributor
Mar 31, 2005
3,061
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19
the motor city
www.4cefed.com
TurboWarrior said:
I think they are both for the VSV's. The rear one is for the EGR VSV. and the Front is a mystery vsv lol. Im not sure what that one does. but I think it prevents heatsoak somehow? I could't find that particular one in the manual.

you're on the right track.

the front one is for the fuel press up VSV- it gives the FPR atmospheric on start up to help w/hot starts....
 

TurboWarrior

New Member
Apr 1, 2005
763
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Canada
Thanks Dr.J. How much are they new? probably too much. Mine doesn't work. I always have problems starting it when hot. Its bypassed right now.