2.4 automatic efi harness swapped to 2.6 manual motor,

I've swapped my harness from a 1990 automatic 2.4 efi d50 to a 2.6 manual 1990 mighty max. Got everything to go well. The only thing is I'm having issues turning the motor over. I've posted threads about issues, and buddy says it might be neutral saftey switch. What does that look like and where islocated on harness. I tried replacing my ignition relay, but doesnt want to turn either. Any advice will help and would be awsome.

If I were you I would locate all wires that were left over and try to determine which one would go to the trans. Then look into the manuals section and look over the manuals for the 1990. Look up pictures or videos of people installing an auto trams from the donor vehicle. Stuff like that. I wish I knew more.