Anybody have an ignition module wiring diagram for a 1993 e350 7.3. I pulled a bunch of unwanted Ambulance wires while looking for my ground issues. I found where the squirrel ate two ground wires soldered them together. I put everything back now I don't have power to the starter.
Or a different grounding problem to the column.

 

Ignition module? IDI, or diesel engines in general don't have ignition modules. Are you talking about the ignition switch under the steering column? IDIs only need 4 wires to run. 12v cable, ground cable, starter signal wire, and fuel shut off solenoid. Focus on those wires.

 

I've traced the problem between the interior fuse box, and the ignition switch. The two black with orange stripe wires to the back of the fuse box have good ground. Which leads me to believe that the half of the fuse box that doesn't work is not getting power from somewhere. The other half works.