Circuit/System Description
WARNING: This page is about a different variant/trim than selected.
For an overview of the component/system, refer to: Fuel System Description
| Circuit | Description |
|---|---|
| 5 V Reference | Regulated voltage supplied by the control module. |
| Signal | The control module input circuit has an internal resistance connected to ground. |
| Low Reference | Grounded through the control module. |
| Component | Description |
|---|---|
| B47 Fuel Pressure Sensor | The sensor measures the pressure in the component: Fuel Line The signal voltage increases when the pressure increases. |
| K111 Fuel Pump Driver Control Module | The control module K111 supplies the fuel pump with a 3-phase voltage in order to achieve the desired pump speed required for building fuel line pressure. |
The control module uses the fuel pressure sensor to constantly adjust the fuel pump's feed rate so that the ideal pressure is maintained in the low pressure section (between the fuel pump and the high pressure fuel pump) by means of a closed loop control.