General information
The fuel vapor recovery system, as its name suggests, is designed to prevent fuel vapors generated in the fuel tank from escaping into the atmosphere. From the fuel tank, fuel vapors are directed through the fuel tank pressure control valve and the fuel vapor suction hose/tube to the adsorber, where they are absorbed by activated carbon. When the vehicle is moving, the fuel vapors accumulated in the adsorber are directed through the adsorber purge solenoid valve, the vacuum hose and the throttle body fitting into the intake manifold and then burn in the combustion chambers of the engine cylinders. At low coolant temperature or low air flow (for example, at idle speed) the engine control unit switches off the electromagnetic valve and the latter blocks the flow of fuel vapor into the intake manifold. This not only ensures stable engine operation when the engine is not warmed up or is operating under low load, but also reduces toxic emissions.
The text of the article was taken from the website: www.MitsubishiMan.ru