Ok I can start the car fine drive it then come to a stop and as soon as I take off again the car dies and check engine light comes on. I turn the key all the way off put the car in neutral turn the key to where all the lights come on but don't crank it up yet. Check engine light goes off then I can crank it up again and soon as I do that Chey engine light comes on again and it dies not long after that also it has kind of a long crank. Could it be main relay,ECU, ignition, or something totally different plz help me figure out what's wrong. The car has sentimental value was my aunts and she passed away last September. Car is a 93 del sol 1.6l 5spd
Also I've ruled out any fuel pump issues pump comes on and it has pressure. Also one more thing after I crank it I can leave it in neutral and rev the motor and if I try to ref it up again right after the first time it will die just sitting there

 

Start by pulling the CEL codes stored in the ECU.