Engine Control Unit
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thetwincats.com -Engine Control Unit ... The engine control module (ECM), also commonly referred to as the engine control unit (ECU) or powertrain control module (PCM), is one of the most important components found on virtually all modern vehicles.
How the engine control module works. The ECM is basically an on-board computer in your car -- it's composed of hardware (a pretty standard circuit board) that's encoded with software (a program that tells the car how to run).
What is an Engine Control Unit ?. An engine control unit (ECU) is essentially the “electronic brain” that makes sure your engine is always operating at the top of its game. In order to accomplish this feat, an ECU has to parse data from a lot of different sensor inputs.
Engine control unit. An engine control unit (ECU), also commonly called an engine control module (ECM), is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure optimal engine performance.