Communication with the atmosphere of the fuel tank is carried out through the adsorber (vapor trap).
Gasoline vapors are retained by activated carbon contained in the adsorber. Gasoline vapors from the adsorber enter the engine, where they burn out. To do this, the absorber is connected to the intake manifold using a solenoid valve located on the mudguard cup.
The principle of operation of the solenoid valve is to change the flow area depending on the signal of the degree of cyclic opening coming from the injection computer.
The change in the flow area of the fuel vapor channel in the solenoid valve occurs due to the balance between the magnetic field created by the winding supply voltage and the force of the return spring, which ensures the closing of the solenoid valve.