Diesel Data: Automotive Repair

Secondary HO2S Replacement




Secondary HO2S Replacement

Special Tools Required

- O2 Sensor Wrench Snap-on S6176 or equivalent, commercially available

1. Raise the vehicle on a lift.

2. Disconnect the secondary HO2S 4P connector (A).





3. Remove the secondary HO2S (Sensor 2) (B).

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