Check Engine Light Due to Oxygen Sensor Failure on Buick Skylark

The oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).

RepairPal Verified
Average mileage: (–)
Exhaust & Emissions affected: 2.5L 4 Cylinder
2 model years affected: 1990, 1991
2 people reported this problem
0 people shared problem details
Related Items:
A Loose or worn gas cap may cause Check Engine Light to illuminate.
occasionally, it wants to stall unless more pressure is applied to the accelerator (sounds like...
I could drive my car for about 15 to 20 mins then go to park, so I reverse then put in drive bu...
Low coolant light remains on. Sensor replaced there are no leaks. waterpump and all seals and g...

Related Content