For 1990-2009 cars

### Removal Procedure

1. Turn OFF the ignition switch.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in general information.
3. Disconnect the knock sensor wiring harness connector from knock sensor.
4. Remove the knock sensor from engine block.

### Installation Procedure

Important: Do Not apply thread sealant to sensor threads. The sensor is coated at factory and applying additional sealant will affect the sensor's ability to detect detonation.

1. Install the knock sensor into engine block.
2. Install the knock sensor wiring harness connector to the knock sensor.
3. Lower the vehicle.
4. Connect the negative battery cable.