Removal Procedure
- Ignition OFF.
- Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
- Remove the engine cover. Refer to Engine Cover Replacement .
- Disconnect the heated oxygen sensor (HO2S) electrical connector (1).
- Remove the HO2S (2) from the exhaust manifold.
CAUTION:
The Heated Oxygen Sensor (HO2S) and the Oxygen Sensor use a permanently attached pigtail and connector. Do not remove this pigtail from the Heated Oxygen Sensor. Damage or the removal of the pigtail or the connector could affect the proper operation of the sensor.
Take care when handling the HO2S and the O2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Also avoid using cleaning solvents of any type. Do not drop the HO2S or the O2S. Do not roughly handle the HO2S or the O2S.
Take care when handling the HO2S and the O2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Also avoid using cleaning solvents of any type. Do not drop the HO2S or the O2S. Do not roughly handle the HO2S or the O2S.
CAUTION:
Remove oxygen sensors with the engine temperature above 48°C (120°F). Otherwise the oxygen sensors may be difficult to remove.
WARNING:
Refer to Exhaust Service Warning
.
WARNING:
Refer to Protective Goggles and Glove Warning
.
WARNING:
Refer to Battery Disconnect Warning
.
CAUTION:
Handle the oxygen sensors carefully in order to prevent damage to the component. Keep the electrical connector and the exhaust inlet end free of contaminants. Do not use cleaning solvents on the sensor. Do not drop or mishandle the sensor.