Knock Sensor: Service and Repair

Knock Sensors

Electrical connectors





6 Knock Sensor (KS) 3 (G198)
7 Knock Sensor (KS) 4 (G199)
9 Knock Sensor (KS) 2 (G66)
10 Knock Sensor (KS) 1 (G61)

Removing


• 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.

• Observe safety precautions when disconnecting the battery.

- Remove intake manifold. Refer to => [ Intake Manifold ] Intake Manifold.

Remove the Respective Right Cylinder Bank Knock Sensor.





2 Knock Sensor (KS) 1 (G61)
9 Knock Sensor (KS) 2 (G66)

Remove the Respective Left Cylinder Bank Knock Sensor.





8 Knock Sensor (KS) 3 (G198)
1 Knock Sensor (KS) 4 (G199)

Installing

- Install the removed knock sensor.

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

Knock sensor tightening specification. Refer to => [ Ignition Assembly Overview ] Service and Repair.

- Reinstall intake manifold. Refer to => [ Intake Manifold ] Intake Manifold.