GASOLINE FUEL INJECTION

GASOLINE FUEL INJECTION ABSTRACK Fuel injection is a system for admitting fuel into an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s. A fuel injection system is designed and calibrated specifically for the types of fuel it will handle. Most fuel injection systems are for gasoline or diesel applications. With the advent of electronic fuel injection (EFI), the diesel and gasoline hardware has become similar. EFI's programmable firmware has permitted common hardware to be used with different fuels. Carburetors were the predominant method used to meter fuel on gasoline engines before the widespread use of fuel injection. A variety of injection systems have existed since the earliest usage of the internal combustion engine. The primary difference between carburetors and fuel injection is that fuel injection atomizes the fuel by forcibly pumping it through a small nozzle under high pressure, while a carburetor relies on suction created by intake air rushing through a venturi to draw the fuel into the airstream. This course is designed to aid the driveability technician in performing proper basic and advanced tests in diagnosing common driveability issues found on vehicles today. Use of service information and tools such as understanding fuel related data parameters using a scan tool found in todays vehicles are instructed. Technicians are also demonstrated tests on a live vehicle. In the ladder half of the course, technicians are instructed on each critical sensor their operation, and how they are tested using a multimeter and lab scope. OUTLINE 1. Introduction and safety guidelines 2. Use of the service manual 3. Review and service procedures 4. Engine Theory and Operation 5. Electronic Control 6. Fuel System 7. Sensor Operation 8. Fuel trim and Oxygen sensor operation PARTICIPANT PelatihaninidapatdiikutiolehStafdaribagian Maintenance, Teknisi, dan operator