2000 Eclipse GS 2.4L dies when engine heats up

PLEASE HELP!!!!! Hey Everyone. I have a 2000 Mitsubishi Eclipse GS 2.4L and I am having a problem with the car dying when the engine heats up. The fuel pump was just replaced a few days ago because we though that was the problem. Car runs good from a cold start but after it warms up the problems begin. It isn't throwing any codes when it is put on the computer. We are stumped. is it possible that it is the engine control module that could be causing it? or could it be the computer? Is it even electrical? Has anyone else experienced this issue ever? PLease Help!!!!