Low Pressure Fuel System - E90: Notes

The low pressure fuel systems differ between the E70 and E90. The E90 is a "speed regulated" system which means that the fuel pump speed is regulated by the EKP module based on request from the DDE.

The fuel pump will be activated with the "ignition on" signal. If the engine is not started, the fuel pump will be switched off after a defined time period. When the engine is switched off, the fuel pump is switched off as well.