I can't figure out where the 2 vacum lines on the vsv? go...
it's a blue electric plug thing on the back of the valve cover, looks like 2 vac and 1 filter? or 3 vac lines...my pre pics don't show well enough...also there is a black 3 prong deal on the inside rear of the EFI chamber...2 prongs plugged and one needs a line, that goes where??
any HELP would be Great!!
thank you,
Hawk

 

http://www.pirate4x4.com/forum/showthread.php?t=579557

I can't see the diagrams at work but this is the site I used to fix some mixed up lines on my 89. When I get home I can actually go outside and look at the 86 ext cab I've got and see if I can trace the lines you're talking about. In the mean time maybe that link will help.

 

Sounds like the VSV for the fuel pressure regulator:
- http://www.4crawler.com/4x4/CheapTri...ine_Pix/8.html