For 1990-2009 cars

### Removal Procedure

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

1. Disconnect the negative battery cable.
2. Raise and suitably support the vehicle.
3. Disconnect the knock sensor connector.
4. Remove the knock sensor retaining bolt.
5. Remove the knock sensor.

### Installation Procedure

Caution: Refer to Fastener Caution in the Preface section.

1. Install the knock sensor with the bolt.

Tighten
Tighten the knock sensor retaining bolt to 20 N·m (15 lb ft).

2. Connect the knock sensor connector.
3. Lower the vehicle.
4. Connect the negative battery cable.