What is the function of the engine carbon canister solenoid valve?

[KiraRose]

The function of the engine carbon canister solenoid valve is to reduce air pollution caused by fuel evaporation emissions while improving fuel efficiency. When the vehicle starts, the solenoid valve opens to release the adsorbed fuel vapor into the intake manifold, which then enters the engine for combustion. The solutions for a faulty carbon canister solenoid valve are: 1. Clean the fuel tank venting system; 2. Clean or replace the carbon canister solenoid valve. The working principle of the carbon canister solenoid valve is: it controls the purging function of the carbon canister through pulse-width modulation. The ECU computer, based on different engine operating conditions, grounds the solenoid valve circuit at a certain frequency to open or close it. The ECU computer controls the vacuum purging of the carbon canister by operating the normally closed solenoid valve.