Secondary HO2S Replacement

Secondary HO2S Replacement

Special Tools Required

- O2 sensor socket wrench, Snap-on YA8875 or SWR2, or equivalent, commercially available

Front Bank (Bank 2)

1. Disconnect the front secondary HO2S 4P connector (A).

2. Raise the vehicle on a lift, then remove the front secondary HO2S (B) with an O2 sensor socket wrench.

3. 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), then remove the rear secondary HO2S (B) with an O2 sensor socket wrench.

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