For 1990-2009 cars

### Removal Procedure

#### Right Bank

Caution: Refer to Protective Goggles and Glove Caution in the Preface section.

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

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

1. Disconnect the battery ground cable from the battery. Refer to Battery Negative Cable Disconnection and Connection.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Remove the starter motor. Refer to Starter Motor Replacement.
4. Disconnect the engine wiring harness (3) from the knock sensor (2).
5. Remove the knock sensor to engine block retaining bolt (1).
6. Remove the knock sensor (2) from the engine block.

### Installation Procedure

1. Connect the engine wiring harness (3) to the knock sensor (2).
2. Position the knock sensor (2) on the engine block.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the knock sensor to engine block retaining bolt (1).

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

4. Install the starter motor. Refer to Starter Motor Replacement.
5. Connect the battery ground cable to the battery. Refer to Battery Negative Cable Disconnection and Connection.

### Removal Procedure

#### Left Bank

Caution: Refer to Protective Goggles and Glove Caution in the Preface section.

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

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

1. Disconnect the battery ground cable from the battery. Refer to Battery Negative Cable Disconnection and Connection.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
3. Disconnect the engine wiring harness (3) from the knock sensor (2).
4. Remove the knock sensor to engine block retaining bolt (1).
5. Remove the knock sensor (2) from the engine block.

### Installation Procedure

1. Connect the engine wiring harness (3) to the knock sensor (2).
2. Position the knock sensor (2) on the engine block.

Notice: Refer to Fastener Notice in the Preface section.

3. Install the knock sensor to engine block retaining bolt (1).

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

4. Connect the battery ground cable to the battery. Refer to Battery Negative Cable Disconnection and Connection.