Intake Manifold Pressure Sensor

Intake Manifold Pressure Sensor: The pressure sensor is located in the back of intake manifold (1 peizo-electric). The voltage supply from the ECM is 5 V. The varying resistance of the sensor is dependent on manifold pressure. The output voltage signal is processed by the ECM. The intake manifold pressure is calculated by the ECM and is compared with the ambient pressure (internally measured).







An intake manifold vacuum of 50 mbar is required for the fuel tank evaporative purge function.

This vacuum is set by the electronic throttle valve and monitoring with the intake manifold pressure sensor.