1999 Grand Am

Having a problem that is very similar to Vapor Lock. Let the car sit idleing for a little while and take off and the car stalls. Code reads "Bank 1 Rich" Anyone else have this problem?

Bank 1 rich will refer to your oxygen sensor. Something is causing the oxygen sensor at bank 1 to read rich. I'd get the vehicle scanned to check the coolant sensor and to see if the other readings are within specs.

I have exactly the same problem, I changed my o2 sensor but that didn't help.

Coolant sensor, huh? I did replace my water pump this spring, I'll check it out.