Help
I have a 91 Comanche Eliminator that has been having various starting problems. Sometimes, cold it will crank and not start until you turn the key off then on for a bit, but starts fine warm. Other times it will start fine cold but require the key off and on ritual to start warm. Last night I went to the store, did the cold start routine, drove to the store and when I came out I turned the key and nothing. Had to push start it to get home. Checked the battery, got 12.9v. Disconnected the negative terminal for a bit and when I hooked it back up the truck started right up. All I can think of is the ECM. I was eying the fuel pump or the fuel pressure regulator but after last night, I am thinking the computer is going out.
Any ideas?
Thank you