Heated Oxygen Sensor (HO2S) 1 Replacement
REMOVAL PROCEDURENOTE: Refer to Heated Oxygen and Oxygen Sensor Notice in Service Precautions.
IMPORTANT: The heated oxygen sensor (HO2S) may be difficult to remove at temperatures above 48°C (120°F). In order to prevent damage to any threads in the exhaust manifold, allow the exhaust system to cool down before attempting to remove the HO2S.
1. Disconnect the HO2S 1 electrical connector (1).
2. Remove the HO2S 1 (2) from the exhaust manifold.
INSTALLATION PROCEDURE
1. Install HO2S 1 (2) to the exhaust manifold.
NOTE: Refer to Component Fastener Tightening Notice in Service Precautions.
IMPORTANT: The new HO2S 1 comes with an anti-seize coating on the sensor threads. Take precautions in order to prevent the removal of any of the anti-seize coating prior to installation. If the sensor was removed and is being reinstalled, an anti-seize compound must be applied to the threads before installation.
Tighten
Tighten HO2S sensor to 45 N.m (32 lb ft).
2. Connect the HO2S 1 electrical connector (1).