What happens when the idle air control valve goes bad?

If the idle control valve fails completely, it may leave the vehicle without a source of air to maintain a proper idle. This may result in the engine stalling while operating, and in some cases may result in an engine that will not idle at all, and stalls as soon as it is started.

Will a car start with a bad idle air control valve?

4. The car won’t start: In extreme cases, the IAC valve may cause too much or too little air from entering the engine when you turn the ignition, resulting in engine that cranks but doesn’t start.

What is an air assist valve?

The air assist valve was designed to raise the idle during a cold start up to increase engine warm up speed.

How do you adjust the idle air control valve on a Honda?

Reset the IAC valve pintle position by performing the following:

1. Depress the accelerator pedal slightly.
2. Start the engine and run for 5 seconds.
3. Turn the ignition switch to the OFF position for 10 seconds.
4. Restart the engine and check for proper idle operation.

How do I know if my idle air control valve is bad?

Here are the most common symptoms of a bad IAC valve:

1. Check engine light comes on.
2. Rough idling.
3. Stalling.
4. Weak acceleration.
5. Fluctuating idle speed.
6. Increased idle RPMs.

How to clean your Acura RSX idle air control valve?

Picture by soccerman002 at Club RSX Cleaned IACV. Picture by soccerman002 at Club RSX Again, spray the valve liberally and scrub the crevices with a brush until all the dark gunk is removed. If you need to replace your idle air control valve for any reasons, you can order it using part number 16022-PRB-A02.

Why does my Acura RSX stall at 500 rpm?

You can have erratic idle and stalling issues (i.e. idling toggling back and forth between 500 to 1000 RPM) or your car simply stalls out shortly after it is started. This happen because your engine is not getting enough inflow of oxygen to mix and combust with the fuel injection system, thus, stalling out.

How do you clean idle air control valve?

To remove the idle air control valve from the throttle body, unscrew two 5×25 screw+washer set. Again, this may be difficult, depending on the last time this maintenance was executed. With the IACV unit remove, you may take the time to clean the throttle body valve.

How do you remove air box from Acura RSX?

Pop open your hood and remove your stock air box. Release the clamp on the air tube connecting from the air box to the throttle body and then remove the air tube. Use a plier to release the clamp that’s connecting a small rubber tube from the engine block to the air.

Picture by soccerman002 at Club RSX Cleaned IACV. Picture by soccerman002 at Club RSX Again, spray the valve liberally and scrub the crevices with a brush until all the dark gunk is removed. If you need to replace your idle air control valve for any reasons, you can order it using part number 16022-PRB-A02.

You can have erratic idle and stalling issues (i.e. idling toggling back and forth between 500 to 1000 RPM) or your car simply stalls out shortly after it is started. This happen because your engine is not getting enough inflow of oxygen to mix and combust with the fuel injection system, thus, stalling out.

Pop open your hood and remove your stock air box. Release the clamp on the air tube connecting from the air box to the throttle body and then remove the air tube. Use a plier to release the clamp that’s connecting a small rubber tube from the engine block to the air.

Where is the idle air control valve located?

The idle air control valve is the piece located at the bottom of the throttle body: To remove the idle air control valve from the throttle body, unscrew two 5×25 screw+washer set. Again, this may be difficult, depending on the last time this maintenance was executed.