Operation - Ignition System

The crankshaft position sensor and camshaft position sensor are hall effect devices. The camshaft position sensor and crankshaft position sensor generate pulses that are inputs to the PCM. The PCM determines engine position from these sensors. The PCM calculates injector sequence and ignition timing from camshaft & crankshaft (turbo) position. For a description of camshaft position sensor, refer to CAMSHAFT POSITION SENSOR .