Secondary HO2S Replacement

Special Tools Required

02 sensor socket wrench. Snap-on YA8875, SP Tools 93750, or equivalent, commercially available

NOTE: When the secondary HO2S is replaced the third HO2S must be replaced at the same time (2002-2006 M/T models only).

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

Fig 1: Removing Secondary HO2S
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the secondary HO2S in the reverse order of removal.