For 1990-2009 cars

### Removal Procedure

Caution: Refer to Vehicle Lifting Caution in the Preface section.

Caution: Refer to Safety Glasses Caution in the Preface section.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Disconnect the wiring harness retaining clip (1).
3. Remove the knock sensor (KS) electrical (1) connector from the KS (2)
4. Remove the KS (3) to engine block retaining bolt (2).

### Installation Procedure

Notice: Refer to Fastener Notice in the Preface section.

1. Install the KS (3) to engine block retaining bolt (2).

Tighten
Tighten the KS bolt to 23 N·m (17 lb ft).

2. Install the knock sensor (KS) electrical (1) connector to the KS (2)
3. Lower the vehicle.