Heated Oxygen Sensor (HO2S) - Downstream Federal

REMOVAL
1. Disconnect the battery ground cable.
2. Raise and support the vehicle.
3. Disconnect the Heated Oxygen Sensor (HO2S) electrical connector.







4. Remove the HO2S.
^ Pull the H02S harness through the floor.

INSTALLATION







1. To install, reverse the removal procedure.

NOTE: when the battery is disconnected and reconnected, some abnormal drive symptoms may occur while the vehicle relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.