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Home >> Subaru >> 1992 >> Justy Base >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices (Fuel Injected) >> Detonation (Knock) Sensor
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Detonation (Knock) Sensor

Installed on cylinder block, this sensor responds to cylinder block vibrations resulting from detonation. If detonation occurs, a voltage is generated and sent to ECU. Based on voltage received, ECU retards spark timing until detonation stops.

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