Special Tools Required

O2 sensor wrench, Snap-on S6176 or equivalent, commercially available

1. Disconnect the secondary HO2S connector (A).
   Fig 1: Identifying Secondary HO2S Connector

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
2. Raise the vehicle on a lift.
3. Remove the supporters (A), then remove the secondary HO2S (B).
   Fig 2: Supporters & Secondary HO2S With Torque Specifications

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