Camaro RS V8-305 5.0L VIN E TBI (1990)
Ignition Control Module: Description and Operation
Distributor Reference Signal
Distributor Reference Signal Schematic
The distributor reference signal comes from the ignition module and provides the ECM with RPM and crankshaft position information. If the wire
becomes open or grounded the engine will not run, because the ECM will not operate the injectors. If the engine cranks but won't run, see DIAGNOSIS
AND TESTING, CHART A-3.
