I have a 89 dodge w150 with a 318 and it won't start. I replaced the coil and fuel shut off relay and it started and ran then shut down and won't start up again. It seemed like it was working fine when I replaced the relay but then it shut off. It had low oil pressure when it shut down..in the past I was able to fire it up occasionally but then it would do this same problem. Really not sure where to go with this. I'm going to order up an oil pressure switch and go from there. Someone also mentioned a coil pickup switch. If anyone has any advice let me know