C 1500 Truck 2WD V6-4.3L VIN W (2001)
Camshaft Position Sensor: Description and Operation
The CMP sensor is located in the distributor base. The distributor is driven by the camshaft and distributes the secondary voltage to the spark plugs
through the distributor rotor, cap, and wires. The CMP sensor produces a signal once every revolution of the camshaft. The CMP signal identifies the
position of the #1 cylinder relative to the crankshaft.