Have had 93 grand am, 4 cyl, ohc, several years. Last 2, 3 weeks, the service engine soon light comes on, and car will run just a little rough, but not to bad. Light sometimes will stay on for a good while, other times just a few seconds. Have practically new coil, coil housing, plugs, boots. Car has 147,000 miles, always given good service. Is this maybe a sensor problem, or exactly what should I check. Thanks for any info.
- posted
19 years ago