Manifold Pressure/Vacuum Sensor: Description and Operation

MANIFOLD DIFFERENTIAL PRESSURE SENSOR
This is the pressure sensor that converts the pressure value into an electric signal and gives the signal to ECM. If the differential pressure is over -11 Hg. (in case of manual transmission ), -26 Hg. (in case of auto transmission ),it is expected for the MDP sensor to operate. In that case, if EGR valve doesn't operate, there is a problem with the EGR valve.
The value of MDP (manifold differential pressure sensor) correlates with pressure.