The function of the EGR valve is to control the flow of recirculated exhaust gases depending on the engine load. Exhaust Gas Recirculation EGR Valve for Focus for Escape for Mondeo for Mk3 1S7G9D475AL 1S7G9D475AK 1S7G9D475AF. Exhaust gas recirculation systems affect fuel consumption in gasoline engines. Solve the problem of bad fuel consumption and reduced power. It improves overall engine efficiency, resulting in a more stable idle, better fuel efficiency, and reduced oil pollution., Manufacturer: ROUSHI