Material: Made of particular materials, finely crafted, suitable for long-term use, with stable performance and high reliability. Features: Controls fuel vapor flow from the activated carbon canister to the engine intake manifold to improve emissions control. Installation: Our automotive engine vacuum controller is simple and convenient to install. 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