Fuel Injector For Benz 3C0131113C EB3G5J281AA 3C0131113B C0131113A 3C0131113D A004901013 ; Fuel injectors directly affect the air/fuel ratio for the engine and new fuel injectors do require a new or updated tune； It can reduce carbon deposits, repair cylinder shortages, suppress unstable idle speed, weak acceleration, difficult starting and other problems, and improve engine efficiency; High temperature resistant structure can adapt to engine high temperature environment without deformation. Stable fuel injection volume reduces engine jitter, idle instability and weak acceleration., Manufacturer: KVGAEANDNK