Check Engine Light Due to Failed Front O2 Sensor on Subaru Impreza

The front oxygen (air fuel ratio) sensor element may develop a crack, causing the Check Engine Light to illuminate. Subaru has recalled certain models to replace sensors that may fail. The Subaru service program number is WXW-80, this is not a government mandated recall.


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Average mileage: 110,000 (110,000–110,000)
2 model years affected: 2000, 2002
4 people reported this problem
3 people shared problem details
Yea my check engine light comes on every month or so saying the bank 1 sensor 1 o2 sensor is bad. So I clear it but never fails to come back on
took car in to have it checked. Mechanic stated that all was well.
2000 Subaru Impreza110,000
This will be the second time I have changed my O2 sensor.
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