1979 Throttle Positioner System: Notes
- Start engine and set idle speed. Detach Black/White or Brown/Red wire (as equipped) from 3-way solenoid. Engine speed should increase to 1000 RPM (Federal) or 1100 RPM (Calif.).
- If not, 3-way solenoid or servo diaphragm is improperly operating. See SERVO DIAPHRAGM testing below. Replace units as required.