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Home >> Hyundai >> 1994 >> Excel Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Knock Sensor (Turbo)

Knock Sensor (Turbo)

Sensor is attached to engine block and senses engine knock condition. A piezoelectric element produces electric signal from vibrational pressure. ECM retards timing based on signal received from sensor.