ford Workshop Repair Guides

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Engine Controls - General PCM Programming Procedures|Page 3347 > < Engine Controls - General PCM Programming Procedures|Page 3345
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Powertrain Control Module: Description and Operation

The PCM carries out the following functions:

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accepts input from various engine sensors to complete the required fuel flow rate necessary to maintain a prescribed air/fuel ratio throughout the
entire operational range.

^

outputs a command to the fuel injectors to meter the appropriate quantity of fuel.

^

determines and compensates for the age of the vehicle and its uniqueness, also automatically senses and compensates for changes in altitude.

Engine Controls - General PCM Programming Procedures|Page 3347 > < Engine Controls - General PCM Programming Procedures|Page 3345