Car won't re-start when running for about 30 min. on 1990 Buick LeSabre

1990 Buick LeSabre. I've got a trouble code in the computer of a 41, which could be a variety of things. All of these possible "issues" I have taken care of: Camshaft position sensor, ignition module, ignition coil pack, and mass air flow sensor. The oly thing that I have not yet replaced is the PROM chip in the computer. Seeing as how the car is 21 years old now, trying to find a PROM will be a pain in the you-know-where. The car will start and run just fine for about 20-30 minutes, then it acts like the mass air flow sensor is going out (it'll spit and sputter then eventually die.) As I stated earlier, I havew replaced basically the whole ignition system including the mass air flow sensor. I even went back with standard OEM copper AC Delco spark plugs. This car does have 210,000 miles on it and runs like a chanp, when it runs that is. I can't think of anything else that might be screwing up the ignition, minus the PROM. Any help from viewers of these blogs would be helpful. Thanks

by in Columbia, MO on July 04, 2011
0 answers