Evaporative Canister Purge Valve. Restore your EVAP system's onboard diagnostics with the Evaporative Canister Purge Valve. This purge valve helps to reduce toxic engine emissions by keeping fuel vapors from going out into the atmosphere, encasing them within a charcoal canister instead. Failure to replace a worn-out purge valve can result in difficulty starting or a rough idle.High-Grade Plastic Construction. This unit is made of high-grade plastic, featuring a 2-blade connector terminal configuration with a vacuum connector diameter of 1/3 inch.Warranty. This product is protected by a limited lifetime warranty, which protects against defects in materials and workmanship from the manufacturer. The manufacturer accepts no responsibility for lack of maintenance or improper use.Installation. It takes no more than 30 minutes to install this product if you have moderate-to-expert level mechanical skills. Application. The Evaporative Canister Purge Valve is designed for all 2011-2017 Mustang, excluding EcoBoost and 2018-2020 GT350.