Replace Nissan Sentra Evap Emission System Leak. Shop Nissan Sentra Evap. Order Nissan Sentra Evap Emission System & Nissan Sentra Evap System Vent Control Circuit. Maintaining the Evap (Evaporative Emission Control System) in your Nissan Sentra is crucial for optimal performance and environmental compliance. Regularly check for cracks or loose connections in the system's hoses, and replace the charcoal canister if your car experiences difficulty starting, or you notice a persistent fuel odor, indicating a compromised Evap system. Choose a high-quality replacement that matches your Sentra's specifications, ensuring it features durable materials suitable for the task. Proper installation is key, so follow the manufacturer's guidelines or seek professional assistance to extend the system's lifespan and maintain your vehicle's efficiency. Offering the right Evap components ensures your customers keep their Sentra running smoothly and contributes to increased satisfaction and repeat business.