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Component Description For Rail Pressure Sensor - GF07.04-D-6210HD

ENGINES 651.955/956/957 in MODEL 906 

with CODE (XZ1) Model generation 1 

with CODE (MZ0) Blue EFFICIENCY 

Location 

Illustrated on model 906 

The rail pressure sensor is located in the rail opposite the flywheel side.

G13186428Courtesy of MERCEDES-BENZ USA

Task 

The rail pressure sensor detects the current rail pressure and passes on the change in resistance to the CDI control unit (N3/28).

Input and output signals 

Direct output signals 

Function 

The applied rail pressure influences the position of a metal diaphragm, which is equipped with strain-gauge resistors. The change in location of a diaphragm alters the electrical resistance of the strain-gauge resistors. This change in resistance causes a voltage signal which is evaluated by the CDI control unit to detect pressure.