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Home >> Cadillac >> 2005 >> DeVille Protection Series >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Description and Operation >> Fuel System Description >> Fuel Metering Modes of Operation >> Notes
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Fuel Metering Modes of Operation: Notes

The powertrain control module (PCM) uses inputs from several sensors in order to determine how much fuel to supply to the engine. The fuel is delivered under one of several engine operating conditions called modes. The PCM controls all modes.