strokemanche

I know it turns over when I jump the starter but didn't try to run it

That sounds possible. I'll do some research and see what I can find on that. Appreciate it

Tried it in neutral and nothing. And I have the TCU and all hooked up. This is why I am stumped

Alright I have a 88 Comanche that had a ba/10 in it. And as you probably guessed it met its demise. Unfortunately I couldn't find an ax-15 for Decent price so I went with an aw4 out of another Comanche. I did the engine harness swap but the problem I am having now is it won't turn the starter over. All my relays come on along with instrument luster but it won't turn the starter. Did I miss a safety switch somewhere? I know the neutral safety switch on the trans could be the culprit but I'm worried there is something else missing. Any help is appreciated.