chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Throttle Opener/Kicker Control <--> [Idle Speed/Throttle Actuator - Mechanical] > < Computer Command Control (C-3) System|Page 1939
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Engine Speed Signal: Description and Operation

On all models with full function systems except V6-229 (1983 - 84 VIN code 9) engines, the ``R'' terminal on the 7 terminal ignition module provides
reference pulses to the ECM indicating engine RPM and crankshaft position.

Throttle Opener/Kicker Control <--> [Idle Speed/Throttle Actuator - Mechanical] > < Computer Command Control (C-3) System|Page 1939