An on-board vehicle powertrain control module (PCM) (12A650)
:
Accepts inputs from various engine sensors to compute
the required fuel flow rate necessary to maintain a prescribed air/fuel ratio
throughout the entire engine operational range.
Outputs a command to the fuel injectors (9F593)
to meter the appropriate quantity of fuel.
Determines and compensates for the age of the vehicle and its uniqueness.
Automatically senses and compensates for changes in altitude (i.e. from
sea level to mountains).