To sum it up my 73 dart has a 318 and its being a pain. I''ll start it up. Runs fine. I'll shut it off and then start it back up. Runs fine. I'll shut it off, wait about five to ten minutes and then try to start it and nothing. All it does is turn over but doesn't fir. I've replaced the ECU thinking that was the issue but it looks like that's not it. Maybe vapor lock, or an electrical problem? where should I start?
