Keep your engine idling steady with the Standard Ignition Idle Air Control Valve, MPN AC527. It installs as a direct-fit replacement for the 2003-2006 Pontiac Vibe, 2005-2007 Toyota Corolla, 2003-2007 Toyota Matrix, and 2000-2005 Toyota MR2 Spyder.
An idle air control valve regulates the amount of air that bypasses the throttle plate, allowing the engine control module to hold a stable idle speed under changing loads such as cold starts, the A/C compressor, or accessories switching on.
Signs this part may need replacing include a rough or fluctuating idle, stalling at stops, idle surging, or hard starting. These symptoms can have other causes, so diagnose the source before replacing.
Manufacturer part number AC527.
What does this idle air control valve do?
It regulates the air that bypasses the throttle plate, letting the engine control module maintain a stable idle speed during cold starts, accessory loads, and A/C operation.
Which vehicles does the AC527 fit?
It is a direct-fit replacement for the 2003-2006 Pontiac Vibe, 2005-2007 Toyota Corolla, 2003-2007 Toyota Matrix, and 2000-2005 Toyota MR2 Spyder. See the Buyer's Guide tab to confirm your vehicle.
What are the signs of a failing idle air control valve?
Common signs include a rough or fluctuating idle, stalling at stops, idle surging, or hard starting. Diagnose the cause first, since these symptoms can have other sources.
Will replacing this valve fix my rough idle?
If a failed idle air control valve is the cause of your rough idle, this valve replaces it. Other components can produce the same symptom, so verify the cause before installing.
What is the manufacturer part number?
The manufacturer part number is AC527 from Standard Ignition.
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.
