For 1990-2009 cars

### Removal Procedure

1. Turn the ignition OFF.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Remove the wiring harness heat shield from the oil level indicator tube to gain access.
4. Remove the knock sensor (KS) electrical connector.
5. Remove the KS bolt.
6. Remove the knock sensors.

### Installation Procedure

1. Install the KS.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the KS bolt and tighten to 23 N·m (17 lb ft).
3. Install the KS electrical connector.
4. Install the wiring harness heat shield to the oil level indicator tube.
5. Lower the vehicle.