Barometric Pressure Sensor: Specifications

Barometric Pressure Sensor Voltage--ECM Terminal 65 -- Key ON and engine OFF
At sea level Approximately 3.7 - 4.3 Volts
At 2,000 ft. Approximately 3.75 Volts
At 1,200 meters (3,937 ft) Approximately 3.2 - 3.8 Volts
At 4,000 ft. Approximately 3.50 Volts
At 6,000 ft. Approximately 3.25 Volts