I'll have to upload some pics to my site and link them.

I confirmed that the plug is the A/C idle up switch, checked the wiring schematics and the colors match.

What I can't find is any diagram for the vacuum hose routing <img src="/forums/images/graemlins/confused.gif" alt="" />. Anyone have a diagram or an '88 with A/C? I do have a plug in the side of the intake plenum, is there another device which goes there in an A/C equipped vehicle? My wife's '95 is too different to use as an example.

Dave A.
88 P/U lots of mods
95 4Runner on 33's with a Detroit
Couple of mountain bike's rolling on 26's.