What is the function of the carbon canister solenoid valve on a car?

The carbon canister solenoid valve on a car mainly has the following functions:
1. Carbon canister solenoid valve is a device installed on cars or motorcycles to reduce air pollution caused by fuel evaporation emissions and increase fuel efficiency.
2. When the engine is turned off, the car's activated carbon canister begins to absorb the oil vapor emitted from the fuel tank and is firmly locked in the activated carbon micropores inside the canister, preventing the release of oil vapor into the atmosphere.
3. When the engine starts, the carbon canister solenoid valve opens, releasing the adsorbed fuel vapor into the intake pipe and entering the engine for combustion.

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