mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Camshaft Position Sensor|Locations|Page 2675 > < Camshaft Position Sensor|Locations|Page 2673
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Camshaft Position Sensor: Description and Operation

Distributor

PURPOSE

The Camshaft Position (CMP) sensor detects cylinder #1 TDC compression stroke. The Powertrain Control Module (PCM) uses this signal to
calculate fuel injection timing.

OPERATION

The sensor uses a disc with 1 slot which rotates with the distributor shaft. As the disc rotates, the slot passes through a fixed photo sensor,
indicating cylinder #1 TDC compression to the PCM.

Camshaft Position Sensor|Locations|Page 2675 > < Camshaft Position Sensor|Locations|Page 2673