I have a 1991 Lumina Euro 3.1 that starts and runs great when it's cold. If you warm it up and shut it off for
5+ minutes, then it will crank over and try to start but stall. Does this about 3 times before it finally starts and the RPMs go up to 2000 for a few seconds before slowly settling back down.If you shut the car off and immediately start it back up it starts fine. It also runs fine all the time once it starts. Not sure how long it needs to sit, but once it sits overnight it always starts right up the next day.
Any ideas? It's giving no service codes(none that I can get anyway). Thanks in advance.
Chris