2001 GC, code P0133

Have code P0133, O2 Sensor Circuit Slow Response (Bank 1 Sensor 1), can someone tell me which O2 sensor this is and where it is located. I am assuming I need to replace sensor.

Have code P0133, O2 Sensor Circuit Slow Response (Bank 1 Sensor 1), can someone tell me which O2 sensor this is and where it is located. I am assuming I need to replace sensor.

That would be the sensor in the exaust pipe before the converter. if you're interseted i can send sheet on the oxygen sensors. Dale
email [email protected] :smokin: :naughty:

Yes can you send me a sheet on them. Thanks [email protected]