Sensor - Heated Oxygen (HO2S) - Pre-catalyst

19.22.16 Sensor - Heated Oxygen (HO2S) - Pre-catalyst

Remove
1. Raise vehicle on lift.





2. Release HO2S harness from clip.
3. Release HO2S multiplug from support bracket.
4. Disconnect HO2S multiplug from harness.
5. Remove HO2S.
6. Remove and discard HO2S sealing washer

Refit
1. Clean HO2S and front pipe mating face.
2. Fit new sealing washer and apply anti seize compound to thread of HO2S. Fit and tighten to 50 Nm (37 lbf.ft).

CAUTION: Ensure anti-seize compound does not contact sensor tip.

3. Connect HO2S multiplug and secure to support bracket.
4. Secure harness in clip.