Idle Air Control Valve Fit For Toyota Echo For Scion XA XB 22270-21010 73-4552 22270-21011 AC464. OEM NO. : 2227021010 2227021011 1368001452 1368001453. The idle air control valve is crafted from durable materials designed to resist wear, ensuring reliable performance over an extended period. Stable Idle Control:‌ This idle air control valve helps maintain consistent engine idle speed by regulating airflow, supporting smooth operation under varying load conditions. Durable Construction:‌ Built with engineered composite materials to withstand prolonged exposure to heat and vibration, ensuring reliable function over time., Manufacturer: TLVBFPG