One of the main and most important parts of our car's electronic fuel injection system is the fuel injectors, which, for obvious reasons, sometimes get dirty, blocked or completely broken, so they need to be replaced as soon as possible. The electronic control unit ECU receives the engine operating signal of various sensor outputs, determines the injection time, injection pulse width and other parameters adapted to the engine condition, completes the injection volume control, injection timing control and oil cut-off control of the injector, so that the engine can maintain the optimum operating condition, so that the combustion process of the combustion engine can begin. Fuel injectors use precision grinding valve valve valve, high-quality brass winding, high temperature o-ring, the material of the upper and lower casing is ferroid stainless steel, spray hole sheet, fog hole sheet and spring material is the choice of Auschwitz stainless steel, conjugate sheet material selection of ferro-nickel alloy, spray seat using horse body stainless steel, no recognizable "bounce" in the low pulse width, Usually found in other syringes. https://www.rcautoz.com/fuel-inj...rformance-injectors.html