Tempo L4-140 2.3L HSC (1986)
Carburetor Solenoid: Description and Operation
Carburetor Feedback Solenoid - 2150A
Feedback Fuel Control utilizes a pulsing solenoid to introduce fresh air from the air cleaner into the idle and main system vacuum passages to lean the
fuel and air mixture from the maximum rich condition (0% duty cycle - solenoid closed) to the maximum lean condition (100% duty cycle - solenoid
fully open). The solenoid operates under the control of the EEC-IV system. Also new to the 2150 carburetor is a throttle position sensor required by the
EEC system. This new sensor was designed for the 2150 carburetor and was made non-adjustable to reduce production and warranty costs. To package
the throttle position sensor and the feedback system changes were made to the booster assembly, main body, airhorn, throttle shaft and to certain choke
linkage parts (fast idle cam, cam hub, cam rod, fast idle level & choke shield).
