fits e.g. PEUGEOT 406 (8B) 2.0 16V (please check exact vehicle application) with gaskets/seals HELLA idle control valve regulates engine RPM during idle by adjusting air supply-essential when AC is on or at low speeds. A faulty valve can cause unstable idle, stalling, or engine light warnings, often due to coil shorts, solenoid failure, or carbon build-up. Robust in form and function, ensuring a plug-and-play replacement with OE-level performance and reliability. Helps reduce fuel consumption and emissions, for a smoother engine operation and lower pollutant output. Please check OE part number to ensure proper fit and compatibility with your vehicle.