Galant V6-2972cc 3.0L SOHC (1988)
Altitude Compensator: Description and Operation
Fig. 27 Barometric pressure sensor system diagram
To comply with applicable emission control requirements at all altitudes vehicles equipped with fuel injection include a pressure sensor, Fig. 27 which is
used as a high altitude compensator.
When the ignition switch is turned on and periodical thereafter the ECU monitors the pressure sensor to detect ambient barometric pressure. Fuel
delivery time is then adjusted by the ECU to achieve the proper fuel/air ratio at any given altitude.
