Checking the power system

When checking the power supply system of engines with distributed fuel injection, first of all, check the tightness of all connecting pipelines of the system. Fuel leaks are not allowed. When the key is turned in the ignition switch from position «ABOUT» into position «I», corresponding to the ignition on, the operation of the electric fuel pump should be heard, which should turn off after reaching a pressure in the power system equal to 284-325 kPa. Checking the fuel pressure created by the electric fuel pump in the power system, serviceability of the fuel pressure regulator, injectors are discussed in detail further in the subsection «Fuel Injection System Malfunctions».

Cars use a system of distributed fuel injection. Fuel is injected into each cylinder by a separate nozzle. The fuel injection system reduces the toxicity of exhaust gases while improving driving performance and fuel efficiency of the car.

Diagnosis of the injection system using diagnostic codes is described in the section «electrical equipment» in subsection «Engine management system».

Removal, installation and repair of elements of the power system are described in the section «Supply system».