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1997 STS Oxygen sensor bad?


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Does anyone know which sensor would set this code, and is it typically a bad sensor when this code is set? I see that there is a sensor in the exhaust pipe before the cat convertor and one after the convertor. Is it one of these two sensors? I know that it list the code as heated oxygen sensor (H02S) Circuit high voltage Bank 1 sensor 2.


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That one is immediately in front of the cat. converter.

It could be a failed sensor or broken wire or corroded / dirty connection.


Drive your car.

Use your cell phone.


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