S15/T15 Jimmy 2WD L4-119 1.9L VIN A 2-BBL (1983)
Thermal Vacuum Valve - Carb: Description and Operation
Computer Command Control (C3) System
The vacuum control valve converts the electrical signals from the ECM into vacuum signals by means of the vacuum control solenoid. The A/F ratio is
controlled by the vacuum signals which operate the fuel control actuators in the carburetor.
