Diesel Rail Pressure Sensor

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.

Diesel rail pressure sensor.

20 00 22 0281002797 common rail fuel rail pressure sensor 0281002283. 20 00 2 0281002720 diesel engine fuel rail pressure sensor fit for renault laguna megane 1 9 dci. 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. A fuel rail pressure sensor commonly known as a fuel pressure sensor is used in many diesel and some gasoline engines.

General description the common rail pressure sensor is located on the fuel rail. Cleaning the sensor and the connector can refresh its functions. 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. The extremely high fuel pressures that direct injec.

20792328 7420792328 for volvo. 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. It is a part of vehicle s fuel system and designed to monitor the fuel pressure that is present at the fuel rail. Given its location you can imagine the amount of heat the sensor must absorb and the vibrations it must feel.

With the ignition on and the engine off the sensor output is at 0 5 v corresponding to a rail pressure of 0 bar. This pressure is monitored by a pressure sensor and the difference between the nominal rail pressure value and the measured one is the input signal for the controller. This video is an extract of the automate frps signal voltage low pull up type diagnostics training video. So the sensor will eventually fail.

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. The fuel rail pressure sensor is one such sensor located under the intake manifold and just touching the fuel rail. Its function is to monitor the fuel pressure in the common rail.