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  1. Engine control unit - Wikipedia

    An engine control unit (ECU), also called an engine control module (ECM), [1] is a device that controls various subsystems of an internal combustion engine. Systems commonly controlled by an ECU …

  2. How the Engine Control Module Works | HowStuffWorks

    Do you know what the engine control module actually controls? Check out this article to learn about ECMs in cars and find out what they do.

  3. What is the Electronic Control Module (ECM)? - Cummins

    Nov 3, 2023 · Learn about Electronic Control Module (ECMs) and how they optimize engine performance and provide efficiency and reliability in diverse vehicle technologies.

  4. What Is the Electronic Control Module? - AutoZone

    One crucial component to get familiar with is the Electronic Control Module, or ECM, that plays a pivotal role in ensuring modern vehicles run smoothly and efficiently. Here we’ll break down what an ECM …

  5. 5 Symptoms of a Bad ECM (And Replacement Cost in 2025)

    Jun 4, 2025 · The engine control module (ECM), also referred to as the engine control unit (ECU), is a critical component which links your engine to the central computer of your vehicle.

  6. What Is An Engine Control Module (ECM)? - matrackinc.com

    Apr 21, 2025 · An Engine Control Module (ECM) is the central computer that manages fuel, ignition, and emissions for efficient engine performance. A failing ECM causes issues like poor mileage, engine …

  7. How Does an Engine Control Module (ECM) Work?

    Aug 18, 2025 · The Engine Control Module (ECM), often referred to as the engine’s “brain,” is a sophisticated onboard computer that controls engine operation. It receives inputs from numerous …

  8. Automotive Engine Control Unit or Engine Control Module-Overview …

    But what exactly is an Automotive Engine Control Unit (ECU)/Engine Control Module (ECM)? In this comprehensive guide, we will demystify the ECU, exploring its functionality, hardware and software …

  9. What Is the Engine Control Module (ECM) in a Car?

    3 days ago · Define the Engine Control Module (ECM), the central computer regulating engine performance. Understand failure signs and complex repair options.

  10. Engine Control Module: Understanding Its Critical Role

    Mar 11, 2025 · In this guide, I’ll break down how an engine control module works, what it controls, and how to recognize signs of a faulty ECM. Whether you’re troubleshooting a problem or just curious, …