1991 chevy lumina won't start !!!

i have 91 cevy lumina it won't run it run's when it's cold but die's when it's hafe way warmed up and it will start back up but when i press the gas it dies and it won't start again i put a new moledule on it and new coil packs and new egr and i cheked the fuel regulator and it's good i have no more ideah's what's wrong with it please help me!!!

Usually the culprit on 3.1's is crank sensor and /or ignition module. If you replaced the module(with a new one, never a used one) then most likley crank sensor. Both will cause stalls when hot. Only other thing I could think of would be fuel pump going bad...

Do you have spark and or injector pulse when it won't start, these are basic checks, not just putting in parts?

Another common problem is the ECM. IF your car still has the original computer in it, and it has the service number of 1227727, it's probably bad. Like Maxwedge said, check to see if you have spark and/or injector pulse before throwing expensive, sometimes difficult to replace parts at a problem(the ignition module being one of them).