Gasoline engine injection system Mercedes A-Class (W168)
General description and precautions The electronic engine control unit regulates the amount of fuel supplied and controls the ignition system. Electronic engine management systems have their own...
The principle of operation of the fuel injection system Fuel is sucked from the fuel tank by an electrically driven fuel pump and fed through a fuel filter installed in the fuel tank into the distribution line. The pressure...
Fuel injectors — check Leaky fuel injectors make it difficult to start a hot engine, cause the engine to misfire, and cause misfiring. 1. Start the engine and let it idle. 2. Use a stethoscope...
Engine control unit emergency program function Failure of the accelerator pedal position sensor In this case, the control unit switches to receive a signal from the spare (duplicate) sensor. The maximum throttle...