Distributor: Description and Operation

PURPOSE
The Distributor supplies two functions:
^ Distributes secondary voltage from the coil to the correct sparkplug wire and sparkplug.
^ Houses the Ignition Control Module (ICM) and the TDC/CKP/CYP Sensor.

OPERATION
The Distributor, rotating at camshaft speed, allows the secondary voltage to flow from the coil wire through the cap/rotor to the correct sparkplug wire and plug. It then continually advances the rotor to align with the next sparkplug wire and plug. It also allows the TDC/CKP/CYP Sensor to accurately Inform the Programmed Ignition Electronic Control Module (PGM-IG ECM) of the relative positions of the crank, cam and pistons.