Secondary HO2S Replacement

Special Tools Required 

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

1. Remove the air cleaner (see AIR CLEANER ELEMENT INSPECTION/REPLACEMENT ).
2. Disconnect the secondary HO2S connector (A).
   Fig 1: Identifying Secondary HO2S Connector

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
3. Raise the vehicle on a lift (see LIFT AND SUPPORT POINTS ).
4. Remove the wire clips (A), then remove the secondary HO2S (B).
   Fig 2: Wire Clips And Secondary HO2S With Torque Specifications

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
5. Install the parts in the reverse order of removal.