Description
(1) fuel high pressure sensor
"a" 3-way black connector
The petrol high pressure sensor is of the piezo-resistive type
Make: SENSATA
Role
The sensor measures the value of the high pressure in the fuel high pressure common injection rail
Function
"b" resistive plate
"c" diaphragm
"d" petrol inlet into the sensor
The sensor is a passive sensor with integral electronics, supplied by the engine ECU (+ 5V)
The resistance of the sensor varies as a function of the pressure applied on its diaphragm (the more the pressure increases, the more its resistance increases)
Electrical features
"U" fuel high pressure sensor output voltage for a supply voltage of 5V
"P" pressure of the fuel in the fuel injection rail (bar)
The fuel high pressure sensor output voltage is proportional to the fuel pressure in the high-pressure fuel common rail
| designation | value | unit |
|---|---|---|
| supply voltage | 5 ± 0,25 | V |
| supply current | 10 | mA |
| pressure range measured | 0 ≤ pressure measured ≤ 250 | bar |
| channel number | allocation of channels of connector |
|---|---|
| 1 | output signal |
| 2 | earth |
| 3 | supply voltage |
Programming/initialisation
Programming is necessary if the component is replaced