1996 Oldsmobile Aurora V8 Front Wheel Drive Automatic 158000 miles
My car is stalling and the dealer had me replace the Crankshaft positions sensors. That didn't fix the problem. Now they said it could be the ignition, the PCM, a ground somewhere, the Ignition control module, etc. They don't have any idea what is wrong. They tested the fuel pressure system and are not seeing any problems there. There are no error codes other than the engine stalled code.
Symptoms: The car seems to stall the most when you stop giving it gas, while driving. It doesn't seem to happen until the car is warmed up. It starts great when it is cold and before it gets warmed up, but is very hard to start once it has stalled. The battery voltage looks good while driving (15.3 V) and while cranking 13.4V. It doesn't sputter or shake when it dies, it just simply dies very suddenly like you turned off the ignition. The lights stay on and don't flash when the car stalls. It is not giving any error codes when it stalls. I tried using a secondary key thinking the resistor might be bad but that didn't make a difference.
Is there a way to test the ignition, PCM, or other system that might be failing here?