Lately, I 've only been driving my Camaro about 4 days a week. Since its cold, when I go to start it.......it will fire up and then stall sometimes. Then getting it to fire again is hard. When I let it warm up........I've noticed the it has a rough time idling. It will drop the rpm's and then jump back up to normal. Could this be a sensor. By, the way its a 92 LO3 (Automatic)

 

Or, check to see if your injectors are leaking. I had similar problems.

Later