O2S Replacement

REMOVAL PROCEDURE

NOTE: The oxygen sensor uses a permanently attached pigtail and connector. Do not remove the pigtail from the oxygen sensor. Damage to or removal of the pigtail of connector could affect proper operation of the oxygen sensor.

IMPORTANT:
^ Take care when handling Oxygen Sensor O2S 1. The in-line connector and louvered end must be kept free of grease, dirt or other contaminants. Avoid using cleaning solvents of any type. DO NOT drop or roughly handle the O2S 1.
^ The O2S 1 may be difficult to remove when the engine temperature is less than 48°C (120°F).

NOTE: The use of excessive force may damage the threads in the exhaust pipe.




1. Turn OFF the ignition.
2. Disconnect the oxygen sensor 1 connector.




3. Carefully remove the oxygen sensor.

INSTALLATION PROCEDURE

IMPORTANT: A special anti-seize compound is used on the oxygen sensor threads. The compound consists of a liquid graphite and glass beads. The graphite will burn away, but the glass beads will remain, making the sensor easier to remove. New or service sensors will already have the compound applied to the threads. If a sensor is removed and is to be reinstalled, the threads must have an anti-seize compound applied before reinstallation.




1. Coat the threads only of the oxygen sensor with anti-seize compound, if necessary.

NOTE: Refer to Fastener Notice in Service Precautions.

2. Install the oxygen sensor.

Tighten
Tighten the sensor to 41 N.m (30 lb ft).




3. Reconnect the O2S 1 connector.