Overview of Diesel Fuel Injection Diesel engines are used on some cars and light truckS. The diesel engine uses the heat of compression instead of a spark plug, to ignite the fuel. Diesel fuel injection is similar to gasoline injection, but requires higher injection pressures. Air is drawn into the cylinder and highly compressed. The compression is so high that the compressed air will reach temperatures of 1000F(538.2.C). At the precise time the piston has completed the compression stroke diesel fuel is sprayed into the combustion chamber, or an offset prechamber. The intense heat of the compressed air ignites the fuel, and the power stroke follows Overall Diesel Fuel System A schematic of a diesel fuel system layout is shown in Fig 5-1 ypical diesel system components include the tank, fuel pump filter, injection pump, injectors, and the necessary fuel lines. The system in Fig 5-1 is typical of newer systems that utilize a computer-controlled electronic fuel injection pumpOverview of Diesel Fuel Injection Diesel engines are used on some cars and light trucks. The diesel engine uses the heat of compression, instead of a spark plug, to ignite the fuel. Diesel fuel injection is similar to gasoline injection, but requires higher injection pressures. Air is drawn into the cylinder and highly compressed. The compression is so high that the compressed air will reach temperatures of 1000℉(538.2℃). At the precise time the piston has completed the compression stroke, diesel fuel is sprayed into the combustion chamber, or an offset prechamber. The intense heat of the compressed air ignites the fuel, and the power stroke follows. Overall Diesel Fuel System A schematic of a diesel fuel system layout is shown in Fig.5-1. Typical diesel system components include the tank, fuel pump, filter, injection pump, injectors, and the necessary fuel lines. The system in Fig.5-1 is typical of newer systems that utilize a computer-controlled electronic fuel injection pump