mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Tune-up and Engine Performance Checks > < Knock Sensor|Locations|Page 3238
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Knock Sensor: Description and Operation

KNOCK SENSOR (KS)

Two Types Of Knock Sensor (KS)

The KS is a tuned accelerometer on the engine which converts engine vibration to an electrical signal. The PCM uses this signal to determine the
presence of engine knock and to retard spark timing.

Tune-up and Engine Performance Checks > < Knock Sensor|Locations|Page 3238