Compatible with Golf 1993 1994 1995 1996 1997 1998 1999 For Caddy 1999 2000 2001 2002 2003 2004 2005 Made of particular materials, it ensures smooth engine idling. Function: Improve efficiency. This idle control valve precisely controls the intake air volume, achieving low consumption and saving energy and money. Function: The main function of a car's idle speed control valve is to regulate the amount of air entering the engine to control the idle speed, ensuring engine stability and reliability. Function: This engine idle speed control valve features a fast response time, quickly adapting to changes in engine speed and load conditions, ensuring stable engine performance, and enhancing driving comfort and vehicle stability., Manufacturer: yangfanqihang