Bad knocking under feet

Take a jumper wire direct from the battery+ to coil + and start it and see if it stays running. Just as a test. If it does follow your blue wire from coil that's the wire that keeps the car running after cranking. ( please correct me if I'm wrong but that's what I'd try if it isn't the Ballast.)
Sorry for the late response I've been a while

Hey thanks for responding. I think you might be talking about the thread of why the car wont start unless door is open. Sorry for the many threads LOL.
Anyways. I just tested your idea and the car did idle. However when i went to shut off the car, the car took about five seconds until it was finally dead. So clearly the blue wire to the coil positive changed something.