For 1990-2009 cars

### Removal Procedure

Warning: Refer to Battery Disconnect Warning in the Preface section.

1. Disconnect the negative battery cable.
2. Remove the engine cover. Refer to Engine Cover Replacement.
3. Disconnect the engine coolant temperature (ECT) sensor connector.
4. Remove the ECT sensor.

### Installation Procedure

Caution: Refer to Fastener Caution in the Preface section.

1. Install the ECT sensor and tighten to 35 N·m (25.8 lb ft).
2. Connect the ECT sensor.
3. Install the engine cover. Refer to Engine Cover Replacement.
4. Connect the negative battery cable.