For 1990-2009 cars

### Removal Procedure

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

### Installation Procedure

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

Important: DO NOT apply thread sealant to the sensor threads. The sensor threads are coated at the factory and applying additional sealant affects the sensor's ability to detect detonation.

1. Install the knock sensor into engine block.

Tighten
Tighten the knock sensor to 19 N·m (14 lb ft).

2. Connect the knock sensor wiring harness connector to the knock sensor.
3. Lower the vehicle.