Cherokee 4WD V6-173 2.8L VIN W 2-bbl (1985)
Barometric Pressure Sensor: Description and Operation
The barometric pressure sensor senses changes in barometric pressure and provides this information, through an electrical signal, to the ECM. The
sensor produces a voltage signal of 3.5-4 volts to indicate barometric pressure. The voltage increases in proportion to increases in altitude (decreases in
barometric pressure). This sensor is normally used with the MAP sensor.
