What is the primary function of the EVAP system in vehicles?

The primary function of the EVAP (Evaporative Emission Control) system in vehicles is to capture and store fuel vapors. This system is critical for preventing fuel vapors from escaping into the atmosphere, which helps to reduce air pollution and comply with environmental regulations. The EVAP system operates by collecting fuel vapors from the fuel tank and storing them in a charcoal canister. When the engine is running, these vapors are purged from the canister and introduced back into the engine for combustion, improving fuel efficiency and reducing harmful emissions.

Understanding the role of the EVAP system highlights its importance in maintaining cleaner air quality and promoting more sustainable vehicle operation, which is increasingly critical in the context of environmental awareness and regulatory compliance.