Heated Oxygen Sensor Replacement - Sensor 1

Heated Oxygen Sensor Replacement - Sensor 1

Special Tools

J 39194-B Heated Oxygen Sensor Wrench

Removal Procedure

Caution: Refer to Heated Oxygen Sensor Resistance Learn Reset Caution (Heated Oxygen Sensor Resistance Learn Reset Caution).

Caution: Refer to Heated Oxygen and Oxygen Sensor Caution (Heated Oxygen and Oxygen Sensor Caution).




1. Disconnect the heated oxygen sensor (HO2S) electrical connector (1).

Caution: Refer to Excessive Force and Oxygen Sensor Caution (Excessive Force and Oxygen Sensor Caution).

2. Remove the HO2S (2) using a J 39194-B .

Installation Procedure

Note: Use special anti-seize compound on the heated oxygen sensor threads. The compound consists of graphite suspended in fluid and glass beads. The graphite burns away, but the glass beads remain, making the sensor easier to remove. New service sensors already have the compound applied to the threads. If you remove an oxygen sensor and if for any reason you must install the same oxygen sensor, apply the anti-seize compound to the threads before reinstallation.




1. Coat the threads of the heated oxygen sensor with the anti-seize compound P/N 5613695, or the equivalent if necessary.

Caution: Refer to Component Fastener Tightening Caution (Component Fastener Tightening Caution).

2. Install the heated oxygen sensor (2) using a J 39194-B . Tighten the HO2S to 41 Nm (30 ft. lbs.).
3. Connect the HO2S electrical connector (1).