Someone please give me some advice... My 91 Accy is dying while I'm driving. It kills intermittingly. When I gear up back into Park and attempt to restart the damn Check Engine comes on and won't allow me to restart (just turns over)...

I usually have to sit from anywhere from 10-20 minute until she feels like starting again. And after that, it's only temporary, until I can hopefully make it home.

Main Relay or Ignition Coil?? And where's the most affordable place to pick up either?

Signed Stranded...