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. Remove the knock sensor bolt (1).
3. 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 bolt (1).

Tighten
Tighten the knock sensor bolt (1) to 20 N·m (14.7 lb ft).

3. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.