Oxygen Sensor: Service and Repair

REMOVAL

NOTE: If excessive force is needed to remove Heated Oxygen Sensor (HO2S), lubricate HO2S's with penetrating lubricant E8AZ-19A501-B or equivalent prior to removal.

1. Disconnect negative battery cable.

NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control module relearns its adaptive strategy. The vehicle may need to be driven 10 miles or more to relearn the adaptive strategy.

2. Disconnect Heated Oxygen Sensor (HO2S) from engine control sensor extension wiring.
3. Remove HO2S from exhaust manifold, inlet pipe, or dual converter "Y" pipe, using oxygen sensor wrench.






INSTALLATION
1. To install, reverse removal procedures If required, apply a light coat of anti-seize compound specification ESE-M12A4-A or equivalent to thread.
2. Tighten heated HO2S's to 34-46 Nm (26-34 ft lb).