Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the logical successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la
MAP Sensor
The scan tool displays
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 many of the diagnostic tests.