Colt L4-089 1468cc 1.5L VIN K 2-bbl (1988)
introduce intake manifold vacuum to the idle-up Actuator. The throttle valve opens slightly, preventing engine speed drop caused by power steering
load.
DASH POT
The Idle-up actuator does secondary duty as a throttle closing Dash Pot under deceleration conditions. To accomplish this there is an adjustment screw
(SAS 3) to limit the additional opening of the throttle. When the engine vacuum is higher than normal idle vacuum, the idle-up actuator pulls the
throttle open the additional amount allowed by SAS 3.