This allows the fuel injector to stay open to the exact same aperture as before or during the 12 Amp current spike, but with less heat. Three is the second stage in the hold current which is set at about 2.5 Amps. Not all GDI systems have this second hold stage. If they do, it is there to further protect it from heat damage. If available, it is deployed when the fuel injector opening reaches the higher values, or above 3.5 milli seconds. Testing a GDI Fuel Injector PROPERLY is no easy mater due to the fact that their operating conditions of of current voltage and pressure are ALWAYS changing. By running an injector in it’s actual conditions is the ONLY way to properly test the condition of the injector. We apply a “stress test” to get the fuel injector ready for testing. GDI Fuel injectors don’t fail unless they are in conditions replicating their operating conditions. Many times not until they are under heat.Ĭompanies using a standard port injection machine 100% absolutely CAN NOT do this. Because they can’t, they claim they can see the spray pattern better at low pressures and at static flow. THIS IS FALSE. If you were in the injector business and couldn’t test under actual operating conditions, would you come up with a believable “Excuse” (We will call it), or would you just miss out on all that business? Unfortunately many many places decide to tell their customers this “Excuse”. You can have your GDI injectors properly tested at Injector-Rehab HERE.Valves which accurately control the quantity of fuel delivered. The intake manifold, and inject the fuel in the direction of the intake The injector is mounted in the throttle body and injects Method where the fuel/air mixture is achieved by one centrally placed ByĪdding the fuel to the air sucked in by the engine, a mixture is createdĭepending on the kind of engine management system either one injector per cylinder (multipoint systems) or one injector for all cylinders (singlepoint systems) are used. The injectors are connected to the fuel rail. The fuel from the tank is pumped through a fuel filter to the fuel Of collection and distribution pipe for the fuel.
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