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What Does ECM Stand For? The Automotive Acronym Explained - SlashGear

ECM stands for Engine Control Module, a crucial component in modern vehicles responsible for managing and optimizing engine performance. It is essentially a computer that controls various aspects of the engine, including fuel injection, ignition timing, and emissions. The ECM uses data from numerous sensors to make real-time adjustments, ensuring the engine runs efficiently and meets performance and environmental standards. It also plays a key role in diagnosing engine issues, as it can store error codes that mechanics use to identify and fix problems. While the term ECM is widely used, some manufacturers may refer to it as the Engine Control Unit (ECU) or Powertrain Control Module (PCM), but the functionality remains the same across these different names.

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