An idle air control valve (iac) allows the flow of air into the intake to be mixed with fuel while the vehicle is at an idle. when you open the throttle the valve does not need to work because the air is coming from the air box hence the name idle air control
The idle air control valve on the Chevy Colorado actually controls the speed of your engine's idle. The valve is sometimes called the idle speed control valve.
The 2002 Dodge idle air control valve is located on the outside of the air cleaner housing. The idle air control valve can be found on the left-hand side of the housing.
The Idle Air Control (IAC) valve is mounted on the throttle body
No, the MAF measures the amount of air entering the engine, while the idle control valve controls the amount of air at idle.
An idle air control valve controls the engine idle revolutions by opening/closing to let more/less air into the throttle body (carburetor)-the car computer reads and controls the valve.
Idle air control valve diagram
The idle air control valve on a 2004 Trailblazer is located inside the coolant system. This valve regulates the air that comes into the cabin.
how can I clean the Idle Air Control Valve on a 1998 Nissan Frontier
The idle air control valve on a 2002 Pontiac Bonneville is located on the intake manifold. This valve allows direct adjustment to the engines idle system.
Try unhooking the battery for ten minutes to try to reset it, or you have a wiring problem.
Perhaps a vacuum leak, or clogged throttle body. Perhaps just a worn out engine. When you replaced your idle air control valve, did you remove the battery for at least 10 minutes? It will reset the computer, then start the car up with all the accessories on, let it idle for about 5 minutes. It should relearn how to idle. Perhaps that will help.