Removal Procedure
WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.
- Turn the ignition OFF.
- Disconnect the bank 1 heated oxygen sensor 1 harness connector.
- Use liquid penetrant before removing the sensor.
- Remove the oxygen sensor using the J 39194-C .
IMPORTANT:
Bank 1 are cylinders 1, 3, and 5 which are closest to the front of the dash.
CAUTION:
Removal of the sensor is easier if the exhaust system is warmed up slightly. Be careful that it is not too hot to work on safely. Applying penetrating oil to the threads while moving the sensor back and forth will also aid in removal and will decrease the chance of exhaust pipe thread damage.