Removal Procedure
- Remove the connector position assurance (CPA) retainer.
- Disconnect the heated oxygen sensor (HO2S) electrical connector (3).
- Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
- Remove the HO2S (2). Refer to Heated Oxygen Sensor Replacement - Position 1 .
- Remove the catalytic converter to muffler nuts.
- Have an assistant support the muffler assembly.
- Separate the muffler insulators from the hangers.
- With the aid of an assistant, remove the muffler assembly.
IMPORTANT:
The HO2S uses a permanently attached pigtail and connector. This pigtail should not be removed from the sensor. Damage or removal of the pigtail or connector will affect proper operation of the sensor.