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Home >> Infiniti >> 2000 >> QX4 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Knock Sensor (KS)

Knock Sensor (KS)

Basic ignition timing is preprogrammed. Knock sensor detects engine knocking, converts knocking vibration into voltage signal and transmits signal to ECM. Information is used by ECM to adjust ignition timing accordingly to eliminate detonation.