Honda Accord: ECT Sensor 1 Replacement
Eighth generation (2008–2012) / Honda Accord MK8 2008-2012 Service Manual / Fuel and Emissions / PGM-FI System / ECT Sensor 1 Replacement
1. Drain the engine coolant (see page 10-6).
2. Disconnect the ECT sensor 1 connector (A).
3. Remove ECT sensor 1 (B).
4. Install the parts in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see page 10-6).