Hey, I have a 91 4.0 ranger and I can't get it to start. Every 10 seconds of cranking I get a spark on plug 1.

The previous owner did a lot of rigging. Is there wiring diagrams for the entire ignition system?

Also, what kind of signals should be going to the crankshaft sensor?

I am getting no power to it.

I am, however, getting power to the ignition coil and it tests out okay.

The ignition module was tested at an auto parts store to be okay.



If I understand correctly, there should be a 12v signal coming from the ignition switch to the crankshaft sensor? If so, which wire?(and how does it route)