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Home >> Nissan-Datsun >> 1987 >> Sentra Base >> Repair and Diagnosis >> Engine Performance >> System >> ECC CEC System >> Engine Sensors Operation >> Detonation (Knock) Sensor
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Detonation (Knock) Sensor

The detonation sensor is located on the engine cylinder block. It sends a signal to the ECU when "knocking" occurs. The control unit modifies ignition timing to reduce detonation.