I have a Mazda 2001 Tribute and I just replaced the Idle Air Control Valve (IAC). I searched for Idle Speed Control actuator and there does not appear to be one. The IAC is the silver module right on top of the manifold.
ISC(IDLE SPEED CONTROL)ACTUATOR. the isc actuator wich is under pcm(powertrain control module) control controls the amount of air entering the intake plenum at idle.
Actuator speed is determined by:
meter in: regulates the speed of the actuator by controling the amount of fluid entering in to the actuator. meter out: regulates the speed of the actuator by controling the amount of fluid leaving the actuator. bleed off: regulates the speed of the actuator by metering a part of the pump flow to the tank. Prof. Mahesh Chopade MIT College of Engineering, Pune
Stepper idle speed actuator in carbureted vehicles it is used to control the engine's idling RPM. It also regulates the position of the throttle valve plate.
On idle speed control actuator is located on the front of the air intake plenum
It is probably the cruise control actuator cable. The actuator is what, through the commands of the cruise control system and driver imputs, determin a speed setting
Actuator speed is determined by:
Idle Speed/Throttle Actuator - ElectronicFront RH Side Of Engine
It is just next to the TPS (Throttle Position Sensor) on the intake manifold.
Idle speed is not adjustable. If the speed is incorrect you have a computer, sensor, actuator, vacuum leak issue.Idle speed is not adjustable. If the speed is incorrect you have a computer, sensor, actuator, vacuum leak issue.
A servo mechanism is one where there is a control system, and actuator; and where there is feedback from the actuator to provide agreement with the control signal. The cruise control on your car is a servo system, for it senses the actuator's effect (road speed) and sends back a signal to the accelerator to adjust the car speed to the set target. Early servo mechanisms (but not the earliest) used an electrical motor, which was also able to send back information on its position. This feedback is the essential part of a servo mechanism. Probably the origin of the word is allied to "servant".
The Idle Speed Control actuator is located right behind the air intake plenum