Justy Hatchback 2WD L3-1.2L SOHC (MPFI) (1992)
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Barometric Pressure Sensor: Description and Operation
PURPOSE
The atmospheric pressure sensor acts as an electronic barometer. This sensor's signal is used by the ECU to make air/fuel compensation based on
altitude requirements.
LOCATION
The sensor is permanently built into the ECU unit.
OPERATION
When the ignition is in the ON position, the sensor sends a signal to the ECU. A voltage signal is generated by the sensor based on atmospheric
pressure, and sent to the ECU.
