ECT Sensor 2 Replacement

Drain the engine coolant (see COOLANT CHECK ).
Disconnect the ECT sensor 2 2P connector (A).

Fig 1: ECT Sensor, Connector, O-Ring With Torque Specification
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove ECT sensor 2 (B).
Install the parts in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see COOLANT CHECK ).