fopu

I tried to start my car Saturday but it didn't start. Had fuel and everything but no spark so I said OK, maybe the ICM went bad. The next day, I tried to start the car again and it started right away! Well, I said, maybe the 'no start' problem occured because of the moisture (it rained a lot the day before and it was humid). I drove the car for, like, 100 miles and it died while driving but I was able to start it immediately. I got back home safe and I thought that the nightmare is over. I was wrong! This morning, same problem! Had fuel, had air but no spark. This is what I did:

- I removed the crankshaft position sensor and checked it. It was intact and the readings were according to the specifications. (I used a digital ohmmeter). However, because I had a spare one in the trunk, I put the new one.
- I checked the wires between the sensor and the module and they were fine. I also checked the connector
- I checked for 12V at the module and for proper ground and it was fine
- I checked for the 5V ref from the ECM at the module and it was fine

So, what's next? The module? Is it possible for the module to fail both when the engine is cold or hot? I had this problem in the past and I replaced the module with one from the junk yard. Am I going through the same thing again? Anyway, this time I'm gonna go for a new one. However, if you guys have any tips, I would appreciate your help! Thanks!

jsgold

Most likely your ignition module, which sits under your (3) coils. When they get weak they cause hard starts and can leave you stranded. Just replaced the one in my Blazer, and my father's was replaced (89 Olds) last year. I also know of two Corsica owners. Same symptoms. You should try to rule out other stuff, say plug wires, plugs, fuel filter, even the fuel pump. The crank sensor should be changed if you do have to replace the ignition module as they are not horribly expensive and are a prime suspect when having running stalling issues. My friends Corsica had both go at once. Maybe get your car scanned for trouble codes to the possible cause. If none, then check what I listed. You can remove the coil/ignition module assy and take it to a NAPA or most an other parts store and they can check it for you. Not cheap at around 80-90 dollars, but you can install yourself. I should have two connectors running to it and it is flat.