Idle speed control is mainly control the volume of idle speed air intake, which is to adjust the opening degree of the idle speed inlet valve to implement the actual speed approach target
The ISC (Idle Speed Control) system is provided with a circuit that bypasses the throttle valve, and the air volume drawn in from the bypass circuit is controlled by the ISCV (Idle Speed Control Valve). The ISCV uses the signal from the engine ECU to control the engine at the optimum idling speed at all times.
The idle air control valve controls the air needed to maintain a steady idle speed. It essentially acts as a bypass of the throttle body plate. The solenoid in an idle air control valve can get
1) Stalled Engine - A bad idle speed control valve will cause your engine to stall. Depending on the extent of the wear 2) Idle Speed Changes - When you bring your vehicle to a complete stop, you may notice your engine idle speed changing 3) Difficulty Steering - During a situation where
This chapter discusses engine idle-speed control. The engine speed at idle is maintained at a desired value despite changes in engine loads (e.g., due to accessories such as an air-conditioning compressor). The controlled variable is engine idle speed and it is measured as discussed previously.
An idle air control actuator or idle air control valve ( IAC actuator / valve) is a device commonly used in fuel-injected vehicles to control the engine's idling rotational speed ( RPM ). [1] In carburetted vehicles a similar device known as an idle speed control actuator is used. Description
. 99 48 22 264 449 87 311 388
what is idle speed control
