OEM 02739 engine air control valve factory

Auto Engine Part Idle Air Control Valve factory 02739 17102739 for Opal

What is an engine air control valve?

The engine air control valve is a crucial part of modern engines, especially those using an electronic fuel injection system. Its primary function is to regulate the engine's idle speed; the engine air control valve does this by controlling the amount of air entering the engine when it's idling. During idling conditions, the engine’s throttle body is closed; however, it remains running without any throttle input and needs a small amount of air to maintain a steady idle speed. Theengine air control valve acts as a bypass that allows this air to get to the engine (even though the throttle body is closed) and regulates the amount of air that gets through. This regulated airflow ensures that the engine maintains a consistent idle speed regardless of engine load, temperature, or altitude. It also allows the driver to manage the vehicle's RPM (revolutions per minute) based on their needs.

The engine air control valve is essential for smooth and reliable vehicle operation; without a functioning idle control valve, the engine may experience RPM fluctuations, eventually leading to rough idling, stalling, and engine shutdown.

Can You Continue Driving with a Bad Engine Air Control Valve?

Technically, you may be able to drive with a bad engine air control valve—but you should not continue doing so. A bad engine air control valvecan potentially lead to stalling, which can compromise vehicle safety. Plus, you won’t pass a state emissions test if the check engine light is on due to a bad engine air control valve.

As such, you should replace a faulty engine air control valve as soon as possible.

Item specifics

Fits Make & Model

Zhonghua Junjie 1.8L, Brilliance Junjie, Le Chi Spark, Opel, Lada

Product Features
-Strong durability: The engine air control valve is made of high quality materials, it has strong durability and abrasion resistance, and has a long service life.
-Wide applicability: The engine air control valve is suitable for various types of automobile engines, can meet the needs of different models, and has good versatility.
-Energy saving and environmental protection: to ensure that the engine is fully burned in the idling state, reduce exhaust emissions, and achieve the effect of energy saving and environmental protection.
-Automatic control: The engine air control valve automatically control the engine air intake to adjust the engine idling speed without manual intervention, simplifying the operation process.
-High precision: The high-precision adjustment function can accurately control the idling speed of the engine to ensure the stability and economy of the engine.

OUR SERVICES
● One year warranty for engine air control valve, responsible for after-sales service.
● Provide inspection video and support online inspection.
● We have some scarce accessories for auto products.
● It can meet customers' diversified OEM/ODM products and packaging customization needs.
● Team of engineers with more than 10 years experience in auto parts.
● The product model of engine air control valve can meet the different needs of customers, with large inventory and fast delivery.

FAQs

1. What is an engine air control valve and what is its function in the car?

The idle air control valve (IAC or IACV) also calledengine air control valve or stepper motor is used on fuel injected engines to control idle speed. The stepper motor type of IAC features a pintle, which is used to either block or open throttle air passages. The powertrain control module (PCM) controls stepper motor operation.

2. Which are the symptoms of a broken engine air control valve/Stepper Motor?

Not surprisingly, a broken engine air control valve often results in engine idle problems. An engine that is idling too fast or too slow may point to a faulty engine air control valve. An engine that stalls out may indicate IAC problems as well.

3. How can I check, if my IAC/engine air control valve is broken?

Typically, if there is a problem with the engine air control valve or its control circuit, the PCM will set a diagnostic trouble code (DTC) and turn on the check engine light (CEL). If the light is on, you can plug a diagnostic scan tool into the diagnostic port under the dash and read the stored trouble codes. If the codes indicate a problem with the engine air control valve or its circuit, a vehicle specific repair manual should be consulted for further testing.

4. How do I change the IAC/engine air control valve in my car?

Engine air control valve varies from vehicle to vehicle, but it is fairly straightforward in most cases. Vehicle specific repair information should be consulted before replacing your engine air control valve. Typical engine air control valve replacement is as follows:

• Disconnect the negative battery terminal
• Disconnect the engine air control valve electrical connector
• Remove the engine air control valve attaching screws
• Remove the engine air control valve assembly
• Install in the reserve order of removal.