Manifold Absolute Pressure Sensor (MAP)

MAP sensors measure the air pressure in the intake manifold. In speed-density tunes, this data is used in conjunction with an intake air temperature (IAT) sensor and the volumetric efficiency (VE) tables to determine the mass air flow.

In naturally aspirated engines, the pressure measured will be roughly 1 bar (14.7 psi / 100 kPa), which is the normal pressure of the air we breathe at sea level. Therefore, these engines typically use a "1 bar" MAP sensor. Components such as turbochargers and superchargers that force more air into the engine increase the pressure measured and may require a MAP sensor rated for more than 1 bar.

To calibrate this sensor, configure its Gain and Offset values.