ECT Sensor 1 Replacement

WARNING: This page is about a different car, the 2006 Honda Odyssey and 2005 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.

Drain the engine coolant (see COOLANT REPLACEMENT ).
Remove the intake manifold cover (see step 1 in REMOVAL ).
Disconnect the ECT sensor 1 2P connector (A).

Fig 1: Disconnecting ECT Sensor 1 2P Connector
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove ECT sensor 1 (B).
Install the sensor in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see COOLANT REPLACEMENT ), and bleed air from the cooling system with the heater valve open.