Mechanical engine computer accessories

The engine computer board is now officially called the engine control module.The engine control module supplies 5 volts or 12 volts to the sensor or switch.This is accomplished by pulling up a resistor to stabilize power to the engine control module.In some cases, even a regular store voltmeter won't give an accurate reading because the input resistance is so small.Therefore, a digital multimeter (DMM) with an input resistance of 10 ohms must be used to obtain accurate voltage readings.The engine control module controls the output circuit by controlling ground, or the power circuit by controlling a transistor or device called an output driver module.What is the function of the car computer board? The car's computer board refers to: the ECU in the car.Functions of the ECU: In addition to supplying appropriate fuel and adjusting ignition angle and timing according to different driving conditions, it is also responsible for controlling various electronic equipment, such as air-conditionin…