For 1990-2009 cars

### Removal Procedure

1. Remove the exhaust manifold lower heat shield. Refer to Exhaust Manifold Lower Heat Shield Replacement.
2. Disconnect the engine wiring harness electrical connector (1) from the bank 1 knock sensor (2).
3. Loosen the knock sensor bolt and remove the knock sensor.

### Installation Procedure

Caution: Refer to Fastener Caution in the Preface section.

1. Position the knock sensor and tighten the knock sensor bolt.

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

2. Connect the engine wiring harness electrical connector (1) to the bank 1 knock sensor (2).
3. Install the exhaust manifold lower heat shield. Refer to Exhaust Manifold Lower Heat Shield Replacement.