MAP(%) ___________________________________________________ (range not available) Indicates intake manifold vacuum as a percentage. The ECM uses the figure in calculations to determine engine load. MAP(V) MAP(mbar) ________________________________________________ (range not available) Indicates either actual voltage from the Manifold Absolute Pressure (MAP) sensor, or a pressure in mbar as calculated by the ECM based on the MAP sensor signal. The voltage is low when the absolute pressure is low and high when the absolute pressure is high. On turbocharged engines, this value is used to control the amount of boost that the turbocharger delivers.