Montero SR 4WD V6-3.5L SOHC (1997)
Barometric Pressure Sensor: Description and Operation
OPERATION
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The barometric pressure sensor functions to convert the barometric pressure to voltage, and to input that voltage (as signals) to the engine
control module. The engine control module based upon those signals, then corrects the amount of fuel injection, etc.
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The 5 V power supply within the engine control module is supplied to the barometric pressure sensor; it passes through the circuitry within the
sensor, and is grounded at the engine control module.
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The barometric-pressure sensor output voltage is supplied to the engine control module in proportion to the barometric pressure (absolute
pressure).
