Functional description
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Strain gauge are used for detecting the pressure. A steel membrane equipped with strain gauge in the sensor is deformed by the adjacent pressure. The changes in resistance in the strain gauge are electronically detected by a Wheatstone bridge and evaluated. The measured voltage is then included as an actual value in the electric fuel pump actuation.
| Index | Explanation |
|---|---|
| 1 | Fuel low-pressure sensor |
| 2 | three-pin plug connection |
| 3 | Fuel delivery line |
| 4 | High pressure pump, cylinders 5 to 8 |
| 5 | High pressure pump, cylinders 1 to 4 |