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Posts Tagged: ECU verus ECM

ECU verus ECM, ECM verus PCM

ECU verus ECM, ECM verus PCM What’s the difference between ECU verus ECM or ECM versus PCM? ECU versus ECM ECU stands for engine control unit, while ECM stands for engine control module. Both acronyms and names mean the same thing. They receive data inputs from sensors and use that data to control the engine’s fuel and ignition systems, intake manifold runners, variable valve timing mechanisms, and engine cooling systems. In vehicles with an ECU or ECM, carmakers often relay on a separate module to control the transmission shifting. The … Read More

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