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Home >> Ford >> 1989 >> Probe GT >> Repair and Diagnosis >> Engine Performance >> System >> 2.2L Systems/Tests W/Codes >> Operation >> ECA Input Sensors >> Knock Control Unit

Knock Control Unit

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This control unit is used on turbocharged engines only. It determines if signals produced by the knock sensor are due to pre-ignition or vibration. It filters the signal that is sent to the ECA. The ECA uses the signal to retard ignition timing. It is mounted on the firewall next to the BP sensor.