wiring 7.3l
 

im working on my ford cummins progect and cant figure out the wiring does anyone have a shecmatic showing what the different color wires go to on a 91 f350 with the 7.3L

What exactly are you trying to get to work?

everything i was able to hook up a black wire and a yellow wire to a battery for testing and with the key on i get the heater, dinger, a couple dash lights and thats it