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Secondary HO2S Replacement

Special Tools Required

O2 sensor socket 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 Secondary Ho2S 4P Connector And Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the secondary HO2S in the reverse order of removal.