ECT Sensor 1 Replacement

Drain the engine coolant (see COOLANT CHECK ).
Remove the air cleaner (see AIR CLEANER REMOVAL/INSTALLATION ).
Remove the hose clamp stay bolt (A).

Fig 1: Hose Clamp Stay Bolt With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the ECT sensor 1 connector (A).

Fig 2: ECT Sensor 1 Connector, ECT Sensor 1 & O-Ring With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove ECT sensor 1 (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 ).