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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 238 (Fuel System - Repair Instructions - X5 (4.4L)) >> Fuel Pump with Drive and Line >> 13 31 ... Notes on fuel pressure check (reference pressure: environment) >> Description Of Operation:

Description Of Operation:

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

The control function of the fuel pressure regulator must be guaranteed under all operating conditions. The fuel pump must always be able to generate a higher fuel pressure than the pressure regulated by the pressure regulator.

The injection rate is adjusted by means of the injection time; the injection time is controlled by the DME.

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