Cavalier L4-2.2L VIN 4 (1998)
Oxygen Sensor: Service and Repair
Oxygen Sensor 1
REMOVAL PROCEDURE
NOTICE: 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 the Oxygen Sensor (02S 1). The in-line electrical 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.
IMPORTANT: The 02S 1 may be difficult to remove when the engine temperature is below 48°C (120°F).
1. Turn the ignition switch OFF
2. Disconnect the Oxygen Sensor 1 electrical connector.
IMPORTANT: Do not use excessive force when removing the 02S sensor.
3. Carefully remove the Oxygen Sensor 1.
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 from an engine, and if for any reason it is to be reinstalled, the threads must have an anti-seize compound
applied before reinstallation.
1. Coat the threads to the oxygen sensor with anti-seize compound, if necessary.
2. Install the Oxygen Sensor 1. Tighten the 02S 1 41 Nm (30 lb ft).
3. Connect the Oxygen Sensor 1 electrical connector.
