.....now my truck f350 super duty 4x4 one ton 6.9 1987 will turn over but wont start.i didnt notice the wire when it came off so i dont know where it goes..... >snip
I happen to be in your town right now (if your Profile information is still correct) and I can help you.
I just just finished redoing/fixing/replacing the the GP harness on my 87 F250 a few days ago (should be identical to yours) - from the starter solenoid @ left fender well, through the controller, and all of the connections, plus new alternator & voltage regulator, new Pos. battery cable assembly, so I know where everything goes. I also have the factory manuals with wiring diagrams on CD. I could come over and look at yours and probably show you where everything goes, and we can also look at my wiring for a reference.
I didn't see a way to send a private message to you for contact info but I'll try another option