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.
MAP Sensor
Scan tool range is
10-105 kPa (
0.00-4.97 volts). The Manifold Absolute Pressure
(MAP) sensor measures the change in the intake manifold pressure from engine load,
EGR flow, and speed changes. As intake manifold pressure increases, intake vacuum decreases resulting in a higher MAP sensor voltage and kPa reading. The MAP sensor signal is used to monitor intake manifold pressure changes during the EGR flow test, to update the Barometric Pressure
(BARO) reading, and as an enabling factor for several of the diagnostics.