My problem is I run as a volunteer firefighter. There are many times I run the truck pretty hard to get to the firehouse and then jump out immediately to drive the fire truck. I can't wait for it to cool down. If I'm not going to a fire call, I don't mind waiting.
It would be easier to tell you if i knew which wire to keep it running then cut it off. It could be done with a simple timer if we just knew which wire to toggle. Find that out and I imagine I can help you out.
From dumb phone.
Key switch input to ECM?