I have a g-20 van with 5.7 1987 (350)

I have sunk lots of cash in this van this week. I still have same problem. Runs couple minutes then shuts out. Starts back up after a few minutes only to repeat.
Replaced: fuel pump in tank, fuel filter,fuel pump relay switch, ignition module in distributor, distributor cap, plugs and wires, temp. sensor switch, ignition coil, alternator and battery.
Thanks for any suggestions, I am at my wits end.

 

not 100% sure, but i know on computer controlled, the oil pressure switch is tied into the ignition. check the oil pressure gauge while running, see what kind of pressure there is. could just be a bad sending unit. maybe.

 

thanks i will give it a try