For 1990-2009 cars

### Removal Procedure

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

1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
2. Disconnect the electrical connector at the knock sensor.
3. Remove the knock sensor retaining bolt (1) from the engine block.
4. Remove the knock sensor (2).

### Installation Procedure

1. Install the knock sensor (2).

Caution: Refer to Fastener Caution in the Preface section.

2. Install the knock sensor retaining bolt (1) and tighten to 20 N·m (15 lb ft).
3. Connect the electrical connector at the knock sensor.
4. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.