Wiring Solutions?

My Friend tried to work on his dodge caravan, 1990. He pulled apart a harnest of wires. Now I am trying to figure out how they go back together. Does anyone have any wiring diagrams and photos for this van? The engine sometimes starts and runs just fine, other times it doesn't start at all or dies running and won't start. Its a 4 cylinder, 1.8 or 1.9, not sure at the moment. I don't have the proper tools to test for sparks or feul pressure to find out which way to look.
:banghead:

Has anyone ever experience this problem or similar problems? I am second guessing myself at feul pump.

Highballhtd