Knock Sensor: Service and Repair

Knock sensor, replacement

Removing the knock sensor (KS)
Remove the cable from the battery negative terminal. First read Battery, disconnecting Battery Disconnecting.
Drain the fuel injection system. See Fuel system pressure release Service and Repair.

Remove:
- the intake manifold. See Intake pipe/gasket, replacement Intake Pipe/Gasket, Replacement
- the screws for the knock sensors (KS)
- the tie strap by the connector.
Disconnect the connector. Pull the sensors downwards and past the rear edge of the starter motor bracket.

Installing knock sensors (KS)
Install a new sensor. Tighten by hand.
Route the cables on the outside of the starter motor bracket.
Adjust the sensor to the 5 o'clock position.
Tighten the knock sensor (KS). Tighten to 20 Nm.
Connect the connector.
Check that the cable is correctly positioned. Secure with a tie strap at the bracket for the starter motor.
Install the intake manifold according to Intake pipe/gasket, replacement Intake Pipe/Gasket, Replacement.
Install the battery negative lead. First read Battery, disconnecting Battery Disconnecting.

Install:
- the intake manifold. See Intake pipe/gasket, replacement Intake Pipe/Gasket, Replacement
- the battery negative lead. First read Battery, disconnecting Battery Disconnecting.