What is the function of a car's activated charcoal canister?

[McWyatt]

The function of a car's activated charcoal canister is to absorb gasoline vapors. Gasoline itself is a highly volatile liquid, and when stored in the fuel tank, it produces gasoline vapors that need to be absorbed by the charcoal canister. Relevant information is as follows: 1. The car's fuel tank is a sealed space. Without the charcoal canister absorbing the gasoline vapors, there would be a risk of the fuel tank exploding. The absorbed gasoline vapors are not wasted; once the engine starts, the vapors in the charcoal canister enter the intake manifold and then proceed to the combustion chamber to be burned. 2. Over time, the charcoal canister may develop faults, and in some cars, the charcoal canister solenoid valve may also fail, leading to an increase in the vehicle's fuel consumption.