The idle air control valve is used to regulate the amount of air flow to the engine when the car is idling. Therefore, it is important to know the functioning of this valve in order to find any fault. You may go through the slides which show how the idle air control valve provides smooth idling of your car.

1. How the
Provide
of your

2. The idle air control valve of
your car generally used to
regulate the amount of air
flow to the engine at the idle
state of the car engine.

3. For the fuel economy and
safety of the different parts of
your car right idling speed of
the engine is very essential.

4. As it is controlled by the
engine control module and
check the engine idle speed
to control the amount of air
bypass the throttle intake
plate.

5. In two idle setting, the
minimum idle setting allow
the certain amount of air to
pass through the valve
irrespective of the IAV valve
position.

6. But the running idle setting
is used to achieve by the
combination of the IAC valve
position and the airflow.

7. Throttle following

8. The main significance of the
IAC valve is the throttle
following which is basically
used when you floor the car
and close the throttle valve
suddenly.

9. In such situations, the IAC
valve of your car is open up
temporarily and allow some
air to pass in it.

10. As a result, the compensate
of the valve drop suddenly in
the air and allows the engine
to decelerate gradually.

11. High
Altitudes

12. At the idle state of your car,
the engine RPM should be
minimized and consider this
scenario at a higher altitude.

13. The density of the air is
placed at less, and normal
idling setting. Then, the
engine will die down and
face restarting issues due to
less air flow to the engine.

14. In these conditions, the ECM
adjusts the IAC value of your
car in which the air flows
through it and the engine
idles smoothly.

16. If you find that the sensor in
the IAC valve is used to
detects a drop in the idling
engine RPM, then it opens up
and allows the air to pass.

17. As a result, when it will pass
into the engine, then it will
eventually increase the RPM
of the car engine.

18. So, it's your responsibility is
to prevent the engine from
stalling and try to keep the
engine warm and running.

19. Conclusion

20. If you find any types of
defects in the IAC valve of
your car then it can lead to
engine running problems. So,
keep the IAC valve in good
condition.

21. If the idle speed of your car
is too low, then the engine
will stall or idling will be
rough or in case of high idle,
the engine is overheated.

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