13 31...Notes On Fuel Pressure Check (Reference Pressure: Environment): Notes
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2010 BMW M6, 2010 BMW M5, 2009 BMW M6, 2009 BMW M5, and 2008 BMW M6. However, it is still accessible from the selected car via links, so may be relevant.
Feature of this version with ambient pressure:
The connection for the vacuum hose of the fuel pressure regulator is located between the throttle and the air cleaner or on the air cleaner.
Test precondition:
The correct fuel pressure regulator is fitted.
- Using the EPC, check whether the fuel pressure regulator suitable for the car is fitted:
Connect test adapter.
Description of operation:
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.