Knock Sensor: Service and Repair

Knock Sensors

CAUTION!
• Fuel system is under high pressure! Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure. Refer to => [ Before Opening High Pressure Fuel Injection System ] Service and Repair.

• Then wrap a clean rag around the connection and relieve residual pressure by carefully loosening the connection.

Removing

- Remove each intake manifold.

Vehicles with a magnesium intake manifold. Refer to => [ Intake Manifold ] Intake Manifold.

Vehicles with a plastic intake manifold. Refer to => [ Intake Manifold ] Intake Manifold.

- Remove Knock Sensor 1 (G61) - 2 - or Knock sensor 2 (G66) - 9 -.





- Remove Knock Sensor 3 (G198) - 8 - or Knock sensor 4 (G199) - 1 -.





Installing

- Attach the respective removed knock sensor in its installation location.

• Tightening Specifications. Refer to => [ Ignition Assembly Overview ] Ignition Assembly Overview

• Tightening specifications affects function of Knock Sensor (KS).

- Install each intake manifold.

Vehicles with a magnesium intake manifold. Refer to => [ Intake Manifold ] Intake Manifold.

Vehicles with a plastic intake manifold. Refer to => [ Intake Manifold ] Intake Manifold.