91296 OEM Idle Air Control Valve Quality Stepper Motor IAC China 20327 61296

What is a stepper motor IAC idle control?

Stepper Motor (Relative) - A stepper motor IAC is to be used for Idle Control. In Relative mode the Idle Control IAC will simply open or close the idle valve depending on whether it is above or below the target, and not follow any Idle Control base tables. Long Term control is not available with this Signal Type.

Why is my stepper motor IAC humming when idling?

In a stepper motor IAC, magnetostriction deforms the iron and pulls the rotor and stator teeth toward each other in the air gap, causing audible noise. For stepper motors IAC, the audible sound of magnetostriction manifests itself as an intense low pitch hum.

Do stepper motors IAC draw current when idle?

But when the motor idles, or holds position, it requires much less torque. These instances are a good time to reduce motor current. Most modern stepper drives do this automatically. For example, the drive might reduce idle current to 50% of the running current.

Item specifics

Fits Make & Model

BYD F3, F3R, L3, G3, 473QE Engine, 465QA Engine, Hafei Little Overlord

Product Features
-Strong durability: The stepper motor IAC is made of high quality materials, it has strong durability and abrasion resistance, and has a long service life.
-Wide applicability: The stepper motor IAC 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 stepper motor IAC 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 the stepper motor IAC, 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 stepper motor IAC can meet the different needs of customers, with large inventory and fast delivery.

FAQ

1. What is an stepper motor iac and what is its function in the car?

The idle air control valve (IAC or IACV) also called idle speed control (ISC) 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 IAC/Stepper Motor?

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

3. How can I check, if my IAC/Stepper Motor is broken?

Typically, if there is a problem with the IAC 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 IAC or its circuit, a vehicle specific repair manual should be consulted for further testing.

4. How do I change the IAC/Stepper Motor in my car?

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

• Disconnect the negative battery terminal
• Disconnect the IAC electrical connector
• Remove the IAC valve attaching screws
• Remove the IAC assembly
• Install in the reserve order of removal