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Home >> Jeep >> 1986 >> Wagoneer Base, 2.1 B >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - TBI >> Operation >> Detonation (Knock) Sensor
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Detonation (Knock) Sensor

This sensor is located in cylinder head and provides input to ECU that indicates detonation during engine operation. When detonation occurs, ECU retards ignition advance to eliminate pre-ignition knock in applicable cylinder.

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