BMW 12147533588 Engine Control Module

You can Select Your Vehicle to check if 12147533588 fits your vehicle.

The module that handles the operation of the engine is called the engine control module (ECM), located in the electronics box in the right rear of the engine compartment, the part of the ECM that is specific to this model can be updated with a flash programmer this module has 5 electrical wiring harness connectors containing a total of 134 pins. The EEPROM is embedded in the ECM and is different for each make of car; it can be flashed up to 13 times. The ECM meters pressurised fuel by controlling duration of the fuel injector opening and the fuel pump pressures are adjusted, such that pulse/width of the injector is the only factor need for fuel . Fuel injectors deliver fuel at an angle in a dual cone pattern The size, shape, and opening duration of injectors are controlled by ECM depending with the engine's conditions so as to have cylinder selective fuel trim. The air filtered through a pleated paper element is located in the air filter housing and the intake Air Mass is determined by a mass air flow sensor which employs heated thin film to weigh the incoming air mass. Engine idle speed is regulated by idle speed control valve, the which bypasses air in different quantities around the closed throttle valve, and the ECM governs the idle speed depending on the Engine warm-up and A/C. If the idle control valve is faulty then the ECM will adjust the air flow so as to sustain the idle rate. Electronic throttle control is used for the throttle control hence there is no throttle cable used. An indication of ignition knock is detected and the engine management computes the correct ignition timing and here the knock sensors work like microphone that translates mechanical vibrations into an electrical signal.