The fault of engine control system indicates that ecu is damaged. The reason for this fault is: 1, power supply circuit fault; 2. The output power module fails; 3. Memory loss; 4, ECU water and moisture fault. Ecu stands for electronic control unit, which is a special microcomputer controller for automobiles in terms of application. It consists of microprocessor, memory, input/output interface, analog-to-digital converter and large-scale integrated circuits such as shaping and driving. Automobile engine is the device that provides power for automobile, and it is the heart of automobile, which determines the power, economy, stability and environmental protection of automobile. According to different power sources, automobile engines can be divided into diesel engine, gasoline engine, electric vehicle motor and hybrid power.

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