lemon-mirror:
Home >> Cadillac >> 1987 >> Cimarron Automatic >> Repair and Diagnosis >> Engine Performance >> Ignition System - Direct Ignition System (Dis) >> Operation >> Dis Reference Signal

Dis Reference Signal

The crankshaft position sensor sends a signal to DIS ignition module which results in a reference pulse being sent to the ECM. The ECM uses this signal to calculate crankshaft position, engine RPM, and injector pulse width.