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Home >> Hyundai >> 2007 >> Sonata L4-2.4L >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Knock Sensor >> Description and Operation
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Knock Sensor: Description and Operation

KNOCK SENSOR (KS)




DESCRIPTION
The Knock Sensor is attached to the cylinder block and senses engine knocking. The sensor contains a piezoelectric element that converts vibration (or noise) into voltage signal and sends this signal to ECM. ECM uses this signal to suppress knocking by retarding ignition timing.

KNOCK SENSOR
Type: Piezoelectric type
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