Diesel Rail Pressure Sensor

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Diesel rail pressure sensor.

0281002706 1800 bar diesel common fuel rail pressure sensor oe. Sensor is used by the ecm as a part of the calculation for the duty cycle applied to the fuel pressure control valve and fuel quantity control valve. The fuel rail sensor commonly referred to as the fuel pressure sensor is an engine management component that is commonly found on diesel and some gasoline injected vehicles. This video is an extract of the automate frps signal voltage low pull up type diagnostics training video.

A fuel rail pressure sensor commonly known as a fuel pressure sensor is used in many diesel and some gasoline engines. Its function is to monitor the fuel pressure in the common rail. Given its location you can imagine the amount of heat the sensor must absorb and the vibrations it must feel. This sensor is usually located near the middle of the fuel rail and is linked to the engine control unit ecu which is the central computer of a vehicle.

It is a part of vehicle s fuel system and designed to monitor the fuel pressure that is present at the fuel rail. The engine speed sensor the accelerator pedal sensor for the ecu to know exactly how much power we need and how strongly we requested the engine thus determining the amount of diesel injected the rail pressure sensor it has the role of measuring pressure from rail so that the ecu can control the high pressure pump further if additional pressure is needed and some other temperature sensors and flowmeters. General description the common rail pressure sensor is located on the fuel rail. So the sensor will eventually fail.

With the ignition on and the engine off the sensor output is at 0 5 v corresponding to a rail pressure of 0 bar. The extremely high fuel pressures that direct injec. The fuel rail pressure sensor is one such sensor located under the intake manifold and just touching the fuel rail. As the engine cranks the sensor output rises rapidly to about 1 3 v indicating the idle operating rail pressure of around 280 to 320 bar.

20 00 2 0281002720 diesel engine fuel rail pressure sensor fit for renault laguna megane 1 9 dci. The pump maintains the rail pressure by continuously delivering fuel to the common rail. Cleaning the sensor and the connector can refresh its functions.