Compatible with Impreza WRX 2002 2003 2004 2005 ; for Forester 1997 1998 1999 2000 2001 2002 ; for Legacy 2001 2002 2003 Features: A properly functioning EVAP purge valve ensures that fuel vapors are effectively returned to the engine for combustion. This reduces the risk of fuel waste and helps improve engine smoothness, especially during acceleration or idling. Installation: Installation is simple, requires no modifications, is quick and easy, and is readily replaceable, saving you time and effort. The carbon canister purge valve (CPV) is an important component of the EVAP system. It helps control emissions and seals your vehicle's fuel system to prevent harmful fuel vapors from entering the environment. It controls when and how much fuel vapor is released from the carbon canister into the intake manifold to participate in combustion in the engine, thereby reducing pollutant emissions and fuel consumption., Manufacturer: TEUIRHD-1