Rear oxygen sensor can cause emissions failure on Toyota Celica

The rear Oxygen sensors are a critical element in fuel control (unlike other vehicles) and can cause an emissions test failure for high CO and HCs. The sensing element cracks and and reports an erroneous steady state lean condition which confuses the computer, which in turn makes the fuel mixture overly rich.
RepairPal Verified
Average mileage: (–)
2 model years affected: 1996, 1997
2 people reported this problem
0 people shared problem details
Related Items:
Does my car have the Federal approved oxygen sensors or California sensors. Can I use the Fede...
Over the time the exhaust gas recirculation (EGR) system may become plugged with debris, the ox...
Hi, I have a 1992 Toyota Celica GT. The problem I having is that the car when driving does not...
The first time the check engine lite came on with a code it required one of the oxygen sensors...
The check engine light is coming on giving a lean exhaust code somewhere.

Related Content