Manifold Pressure Sensor: Description

The manifold pressure sensor is placed at intake manifold collector. It detects intake manifold pressure and sends the voltage signal to the ECM.

The sensor uses a silicon diaphragm which is sensitive to the change in pressure. As the pressure increases, the voltage rises. This sensor is not for controlling the engine system, nor for the on board diagnosis.

Fig 1: Identifying Manifold Pressure Sensor

Courtesy of NISSAN MOTOR CO., U.S.A.