Sensor 1 W/o PUP Catalytic Conv

REMOVAL PROCEDURE

NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Service Precautions.

IMPORTANT: The HO2S may be difficult to remove at temperatures above 48°C (120°F). Allow the engine to cool before attempting to remove the HO2S. Be careful when removing the sensor in order to prevent damage to the exhaust manifold threads.

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Disconnect the electrical connector from the Heated Oxygen Sensor (HO2S) 1.
3. Remove the HO2S 1 from the exhaust manifold.

INSTALLATION PROCEDURE

IMPORTANT: A new HO2S 1 comes with an anti-seize coating on the threads. Avoid removing any of this anti-seize coating prior to installation. If the sensor is being reinstalled, an anti-seize compound must be applied to the threads before installation.

1. Install the HO2S 1 to the exhaust manifold.

NOTE: Refer to Component Tightening Notice in Service Precautions.

2. Tighten the HO2S 1.

Tighten
Tighten the sensor to 40-50 N.m (29-36 lb ft).

3. Connect the HO2S 1 electrical connector.
4. Connect the negative battery cable.