What does ECM mean in cars?

1 Answers
LylaLynn
07/30/25 8:04am
Automotive ECM refers to the Engine Control Module, which has the function of continuously monitoring and controlling the normal operation of the engine. In modern engine management systems, the ECM serves as its core control component. The automotive engine control module is one of the important automotive electronics. It can provide the engine with an optimal air-fuel mixture ratio and optimal ignition timing according to different engine operating conditions, ensuring the engine always operates in an optimal state. The core component of the ECM is a VLSI microcontroller composed of microprocessors, which uses various corresponding sensors (temperature, pressure, gas-sensitive, displacement) to pick up control parameters. Through the microcontroller, it implements automatic control over engine functions such as fuel injection, ignition, combustion, operation, and emissions.
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