NOTES ON FUEL PRESSURE CHECK (REFERENCE PRESSURE: ENVIRONMENT)
Feature of this version with ambient pressure:
The connection for the vacuum hose of the fuel pressure regulator is located
between the
REPLACING COMPLETE INJECTION PIPE (N52/ N52K)
Special tools required:
13 5 281
Necessary preliminary tasks:
Read out fault memory of DME control unit
Switch off ignition
Remove clean air pipe
Special tools required:
11 9 470
11 9 473
(cylinder bank 1 to 4)
Necessary preliminary tasks:
Removal of rocker arms is described separately from installation.
Remove servomotor for right eccentric shaft.
Remove ignition coils on cylinder bank 1 to 4.
Remove right cylinder head cover.
Re
Some driveability concerns are related to incorrect fuel volume. Vehicles
with lack of power complaints and
mixture related fault codes may have insufficient fuel volume supplied to the
fuel injection system. These
vehicles may actually pass a fuel pressure test.
Fuel volume issues can be caused