October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
BARO
Scan Tool Displays 10-105 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. Barometric pressure is used to adjust fuel delivery and spark advance to compensate for altitude changes.