Nissan 22060-7B000 Knock Sensor

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To check a knock sensor, disconnect the KS sub-harness electrical connector located on the passenger side of the engine compartment next to the intake manifold. Use a voltmeter set to the lowest AC voltage scale, connecting the negative probe to ground and the positive probe to the sensor terminal on the sub-harness connector, typically identified by a white wire. Tap sharply on the intake manifold to simulate engine knock and observe voltage fluctuations. If none are detected, the sensor is faulty and needs replacement.

If the resistance is not as specified, the Knock Sensor should be replaced.

On V6 models, to replace the Knock Sensor, the intake manifold should be removed. The electrical connector should be disconnected, the sensor retaining bolt should be removed, and the sensor should be taken out from the engine block. Installation is the reverse of removal, and the intake manifold should be installed.

The knock control system is designed to reduce spark knock during periods of heavy detonation.