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• 19:06, 6 July 2026 Cliff talk contribs created page ECM (Created page with "'''ECM''' stands for '''Engine Control Module'''. On the Pontiac Fiero, the ECM is the computer that controls the engine management system. The ECM receives information from engine sensors, processes that information, and controls fuel delivery, ignition timing, idle control, emissions functions, and diagnostic trouble code reporting. == Overview == The Fiero ECM is part of the car's electronic fuel injection and engine-control system. It monitors sensor inputs s...")