Oxygen Sensor: Service and Repair

PRIMARY H02S:

1. Remove the primary H02S.

D16Y5, D16Y7 Engines:





a. Disconnect the primary H02S connector, then remove the cover.





b. Remove the primary H02S.

B16A2, D16Y8 Engines:





a. Disconnect the primary H02S connector then remove the primary H02S.

2. Install the primary H02S in reverse order of removal.

SECONDARY H02S:

1. Remove the secondary H02S.

D16Y5, D16Y7 Engines:





a. Disconnect the secondary H02S connector, then remove the secondary H02S.

B16A2, D16Y8 Engines:





a. Remove the grommet, and pull out the secondary H02S connector, then disconnect the secondary H02S connector.





b. Remove the secondary H02S.

2. Install the secondary H02S in reverse order of removal.