Econoline E350 1 Ton V8-7.3L DSL Turbo VIN F (1998)
Camshaft Position Sensor: Description and Operation
The Powertrain Control Module (PCM) receives engine rotational position information from the Camshaft Position (CMP) sensor. The CMP is a
hall-effect device. It outputs 12 volts to the PCM whenever it detects the iron of a spoked target wheel in front of it, and it outputs 0 volts whenever it
detects the space between the spokes. The target wheel spokes and spaces are each 15 crank degrees, except for narrow spoke which indicates cylinder
No. 1 and a wide spoke which indicates cylinder No. 4 (fires 5th in firing order). The NGS PID RPM is generated by the PCM from the CMP signal.
