Check Engine Light Due to Ignition Related Failures on Buick LeSabre

Problem Description and Possible Solution

Failure of the crankshaft position sensorignition control module, or powertrain control module (PCM) may cause the Check Engine Light to illuminate.

Problem Data
RepairPal Verified
Average mileage: 136,101 (134,000–138,203)
7 model years affected: 1997, 1998, 1999, 2000, more2001, 2002, 2003
11 people reported this problem
Viewing 1 - 3 of 3 problem details
The light service engine lite comes on. I had it fixed about a month ago. Was on a trip and the light came on again. Checked all fluids and they were fine. This costs quite a bit of money.
Check engine light stays on. Have reset it about 5 times and will still come back on
Same issue with Throttle Positioner being dirty or worn in conjunction with the Mass Air Flow Sensor failure. There were conflicting error codes when the check engine light came on causing me to change both components at the same time.