RPM Signal

Crankshaft position and engine RPM are detected by pick-up coil in distributor and crankshaft position sensor. Crankshaft position sensor delivers input signal to Engine Control Module (ECM) to indicate crankshaft position. Camshaft position is determined by input signal delivered to ECM by pick-up coil in the distributor. The ECM uses input signals for controlling fuel injection system, ignition timing (spark advance), fuel pressure control system and heated oxygen sensor system.