Where is the solenoid valve of Lefeng carbon canister installed?

The main working principle of carbon canister solenoid valve is that activated carbon absorbs fuel vapor. When the car starts, the solenoid valve controls the activated carbon canister to open, and the absorbed fuel vapor flows back to the intake manifold for combustion, thus achieving the purpose of saving fuel and protecting the environment. When the canister battery valve is damaged, the canister can't be opened or closed, and the canister battery valve can't be opened, which will lead to fuel vapor not entering the cylinder for combustion; However, if it can't be closed in the normally open mode, the mixture concentration is too rich and the combustion is insufficient, and most unburned fuel is discharged from the vehicle, resulting in fuel waste and increased fuel consumption.

We give the following explanation for the statement that there is no replacement cycle for activated carbon tanks. Due to the physical reasons of activated carbon, it can repeatedly adsorb gas when the engine is working and be sucked into the cylinder for combustion. So if the outside of the activated carbon tank is not damaged, there will be no big problem and it can be used for a long time. Moreover, the replacement period is not clearly marked in the user manual, so it is recommended to replace it after the damage symptoms appear.