I’ve searched but can’t find the specifics. Where does this go? 87 22re
thanks!!!

it hAs two spades perpendicular

 

One of the vacuum switch valves (vsv) that you don't seem to have any of.

AC idle up
FPU fuel pressure up <- probably this one
EGR

Multimeter and your FSM will sort it out for you.

 

Thanks Co_94_PU. I guess the FPU isn't necessary??

As far as the FSM and multimeter, I don't understand how I could use that to find out where it goes? Of course if I see it in the FSM that's obvious to me, but please explain if you know a way to find where it goes by use of the multimeter.

This truck isn't my design, but trying to sort out the best setup to have it in given some of the hacks the PO did.