RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
synchronize the fuel injectors with their respective cylinders.
When the leading edge of the pulse ring (shutter) enters the sync signal generator, the following occurs:
The interruption of magnetic field causes the voltage to switch high resulting in a sync signal of approximately 5 volts.
When the trailing edge of the pulse ring (shutter) leaves the sync signal generator, the following occurs:
The change of the magnetic field causes the sync signal voltage to switch low to 0 volts.
Fig. 10 Distributor And Camshaft Position Sensor - 5.9L
DISTRIBUTOR
All these engines are equipped with a camshaft driven mechanical distributor containing a shaft driven distributor rotor. All distributors are
equipped with an internal camshaft position (fuel sync) sensor.
The distributor does not have built in centrifugal or vacuum assisted advance. Base ignition timing and all timing advance is controlled by the
Powertrain Control Module (PCM). Because ignition timing is controlled by the PCM, base ignition timing is not adjustable.
The distributor is held to the engine in the conventional method using a holddown clamp and bolt.
Although the distributor can be rotated, it will have no effect on ignition timing.
All distributors contain an internal oil seal that prevents oil from entering the distributor housing. The seal is not serviceable.
IGNITION COIL
