Ignition Systems Features

This Section is designed to serve as a guide in understanding, testing and servicing the distributor ignition (DI) system.

The DI system features a camshaft driven distributor which uses no centrifugal or vacuum advance. The distributor has a diecast base which incorporates a Hall effect stator assembly.

Initial timing adjustments are not required unless the distributor has been moved from its factory setting or removed from the engine. Ignition timing procedures and diagnostics are found in Section 8A of the Powertrain Control/Emissions Diagnosis Manual.

NOTE: Do not change timing by use of different octane rods without first having the proper authorization; federal emission requirements will be affected.

The Ignition Control Module (ICM) system features a "push start" mode that will allow manual transmission vehicles to be push started. Do not attempt to push start automatic transmission vehicles.