July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
BARO
Scan Tool Range 10 to 105 kPa/0.00 to 5.00 Volts. The Barometric Pressure reading is determined from the MAP sensor signal monitored during key up and Wide-Open Throttle (WOT) conditions. The Barometric Pressure is used to compensate for altitude differences.