Check Engine Light Due to Oxygen Sensor Failure on Chevrolet S10

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: 131,238 (88,500–185,432)
Exhaust & Emissions affected: 2.5L 4 Cylinder
6 model years affected: 1990, 1991, 1992, 1993, more2002, 2003
11 people reported this problem
4 people shared problem details
2002 Chevrolet S10134,000
Sensor heater not working in 2 sensors
1 person likes thisFlag inappropiate
2003 Chevrolet S1088,500
Check engine light on constantly. Level 1 diagnostic flagged Oxygen Sensor #1, Bank #1. Replacing sensor corrected problem.
Had to replace the down stream O2 sensor.
1990 Chevrolet S10141,500
truck start but runs high and low in idleing then stalls
Related Items:
The distributor may develop internal faults. This can cause a rough running engine or stalling...
sometimes stalls at lights.When coming down a hill I downshift (auto trans) and dynamic brake a...
Ceheck Engine light goes on after engine warms up...runs rough and idles up and down. 140,000 m...

Related Content