3/24/2024 0 Comments Ecm![]() It uses the information to adjust the amount of fuel and air entering the engine’s cylinders to create the right mixture. For example, the module receives input from the oxygen sensors in the exhaust system that the current fuel-air mix didn’t burn properly. The ECM oversees the operation of various engine parts based on the information it gets from the various sensors in the engine and exhaust system. If it also controls the transmission, the module is considered a powertrain control module (PCM). Abbreviated as ECM, it also goes by other names like digital motor electronics (DME) and engine control unit (ECU). The engine control module is the electronic brain that operates the engine.
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