Secondary HO2S Replacement

Secondary HO2S Replacement

Special Tools Required

- O2 Sensor Socket Wrench Snap-on SWR2 or O2 Sensor Wrench Snap-on YA8875, commercially available

Front Bank (Bank 2)

1. Disconnect the front secondary HO2S 4P connector (A), and remove the harness clamps (B).





2. Raise the vehicle on a lift.

3. Remove the harness clamp (A), then remove front secondary HO2S (B).





4. Install the parts in the reverse order of removal.

Rear Bank (Bank 1)

1. Raise the vehicle on a lift.

2. Disconnect the rear secondary HO2S 4P connector (A), and remove the harness clamps (B).





3. Remove rear secondary HO2S (C).

4. Install the parts in the reverse order of removal.