October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Secondary HO2S Replacement

Special Tools Required

O2 sensor wrench, Snap-on YA8875, SP Tools 93750, or equivalent, commercially available

Disconnect the secondary HO2S 4P connector (A), then remove the secondary HO2S (B).

Fig 1: Disconnecting The Secondary HO2S 4P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the secondary HO2S in the reverse order of removal.