Smooth out an erratic idle and keep your engine running steadily with the Standard Ignition Idle Air Control Valve (MPN AC528). It installs as a direct-fit replacement for the 2000-2005 Toyota Celica, taking over the job of the original idle air control valve on the listed application.
The idle air control valve regulates the amount of metered air that bypasses the closed throttle plate, allowing the engine management system to hold the target idle speed during cold starts, warm-up, and changing accessory loads. When the original valve wears or sticks, the airflow it controls can no longer be trimmed accurately.
Diagnose the cause of an idle concern before replacing, as these symptoms can have other sources.
Interchange: Manufacturer part number AC528.
What does this idle air control valve do?
It regulates the metered air that bypasses the closed throttle plate, letting the engine management system control idle speed during cold starts, warm-up, and changing loads.
Will this fit my vehicle?
It is a direct-fit replacement for the 2000-2005 Toyota Celica. See the Buyer's Guide tab and confirm fitment for your specific vehicle.
What are the signs of a failing idle air control valve?
Common signs include a rough or unstable idle, stalling, hard starting, or an idle that hunts up and down. Diagnose the cause before replacing.
What is the part number?
The manufacturer part number is AC528 from Standard Ignition.
Will replacing this fix my rough idle?
If a failed idle air control valve is the cause of your rough idle, this replaces it. A rough idle can have other causes, so diagnose the source first.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
