For 1990-2009 cars

### Removal Procedure

1. Partially drain the cooling system. Refer to Cooling System Draining and Filling .
2. Disconnect the engine wiring harness electrical connector (4) from the engine coolant temperature (ECT) sensor.
3. Remove the ECT sensor.

### Installation Procedure

Notice: Refer to Component Fastener Tightening Notice in the Preface section.

1. Install the ECT sensor.

Tighten
Tighten the sensor to 22 N·m (16 lb ft).

2. Connect the engine wiring harness electrical connector (4) to the ECT sensor.
3. Fill the cooling system. Refer to Cooling System Draining and Filling .