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Home >> Subaru >> 1995 >> Legacy Sedan 4WD F4-2.2L SOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Barometric Pressure Sensor >> Description and Operation
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Barometric Pressure Sensor: Description and Operation

Description
- The Pressure Sensor is used in A/T vehicles. It is located in the Engine compartment at the front of the right-hand suspension. It consists of a solenoid which switches between the atmospheric pressure and suction pressure lines and a Pressure Sensor. This arrangement allows either pressure line to be monitored.
- A sensor output signal is sent to the Engine Control Module (ECM) to diagnose the Exhaust Gas Recirculation (EGR) system and Evaporative Emission Control System.
- The Pressure Sensor is not used in M/T vehicles.

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