Oxygen Sensor: Service and Repair

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HEATED OXYGEN SENSOR (HO2S) AND CATALYST MONITOR SENSOR REMOVAL/INSTALLATION - 2.5L










1. With the vehicle in NEUTRAL, position it on a hoist. See Lifting.

2. Disconnect the heated oxygen sensor (HO2S) and the catalyst monitor sensor electrical connectors.






3. Using the special tool, remove the HO2S and catalyst monitor sensor.

- To install, tighten to 48 Nm {4.9 kgf-m, 35 ft-lbf}.

NOTE:If necessary, lubricate the sensor threads with penetrating and lock lubricant to assist in removal.
4. To install, reverse the removal procedure.

NOTE:Apply a light coat of anti-seize lubricant to the threads of the heated oxygen sensor (HO2S) and the catalyst monitor sensor.