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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 …

  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? - AutoZone

    The Electronic Control Module or ECM, often referred to as the vehicle’s brain, is a computer system that manages various aspects of your car’s operation. It collects data from various …

  4. 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.

  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 Does an Engine Control Module (ECM) Do? - Engineer Fix

    Dec 7, 2025 · The Engine Control Module (ECM), often called the Engine Control Unit (ECU), is the dedicated microcomputer that governs the internal combustion engine in a modern vehicle. …

  7. Bad Engine Control Module (ECM): Symptoms, Repair, …

    Apr 11, 2025 · The ECM, or engine control module, is a computer that manages engine operation by using data from sensors to control components like fuel injectors and ignition coils.

  8. Understanding Engine Control Modules (ECMs) and Their Functions

    Apr 1, 2025 · The ECM performs various functions, such as fuel management, ignition management, idle speed control, emission control, and engine protection. The ECM provides …

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

    Apr 21, 2025 · An Engine Control Module (ECM) is a small computer inside a vehicle that controls how the engine works. It uses information from sensors to manage things like fuel use, air …

  10. Automotive Engine Control Unit or Engine Control Module

    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 …