Camshaft Position Sensor
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2002 Ford RV Cutaway, 2002 Ford Pickup, 2002 Ford F550 Super Duty, 2002 Ford F450 Super Duty, and 2002 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
Camshaft Position (CMP) sensor is used for timing pulsing of fuel injectors. CMP sensor signal is also used by Powertrain Control Module (PCM) to determine firing of spark plugs. See CAMSHAFT POSITION SENSOR under IGNITION SYSTEMS .