I have a 1990 olds that will start great when its cold, runs for about 15 minutes. Once it starts to warm up, it sputters and dies, I can sometimes keep it running by feathering the accelerator, but is spits, kicks and wants to backfire. Will not start again for a few minutes. When it starts again, it will run for smoothly for all the day!!!!!!!
I repalced the crank sensor and the problem still exist.