Airtex 4B1115 Vapor Canister EVAP Emissions Control

The Airtex 4B1115 Vapor Canister is a critical component of your vehicle's Evaporative Emission Control (EVAP) system, designed to capture and store fuel vapors that naturally evaporate from the fuel tank. This emission control device prevents harmful hydrocarbon vapors from escaping into the atmosphere, reducing air pollution while improving overall fuel efficiency.

Key Features:

• Filled with activated charcoal granules that absorb and store fuel vapors until the engine can burn them
• Prevents fuel vapors from venting to the atmosphere, reducing harmful emissions
• Works with the purge valve to release stored vapors back to the engine during operation
• Direct replacement component for proper EVAP system function
• Helps maintain proper fuel tank pressure and venting
• Essential for passing emissions inspections and clearing check engine light codes

When your engine is running and conditions are appropriate, the purge valve opens to allow the trapped vapors stored in this canister to be drawn into the intake manifold and burned as part of the normal combustion process. This not only reduces emissions but can also improve fuel economy by recycling fuel vapors that would otherwise be lost. A properly functioning vapor canister is required on all modern gasoline-powered vehicles to meet federal emissions standards.