Rear Bank (Bank 1)

Disconnect the rear A/F sensor 8P connector (A), then remove the rear A/F sensor (B) with an 02 sensor socket wrench.

Fig 1: Rear A/F Sensor 8P Connector And Rear A/F Sensor With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the parts in the reverse order of removal.