See Figure 1
The Distributor Ignition (DI) system consists of the distributor, Hall effect switch (camshaft position sensor), ignition coil, secondary wires, spark plugs, knock sensor and crankshaft position sensor. The system is controlled by the Vehicle Control Module (VCM). The VCM, using information from various engine sensors, controls the spark timing, dwell, and firing of the ignition coil. It is used on 1993-96 models.