Engines / Diesel / EDC 17 UDS general / Test - return quantity from component: fuel pressure regulation vlave (N276)

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Model

Control unit Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Select the desired control unit as accurately as possible. The UDS identifier EV_xyz can be found in the VCDS after connecting to the control unit and then in the Extended Identification.

Diagnostic operation Select the desired diagnostic procedure.

Diagnostic procedure

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Conditions:
- ignition = OFF
- fuel tank contents > XXl
- on-board voltage > XXV
- fuel system - tightness of line = OK

manifestation of the defect:
change in engine sound at an rpm of about XXXX-XXXX rpm

X)
disconnect the component's return line: fuel pressure regulation vlave NXXX

X)
cover the disconnected line in a suitable manner

X)
connect the actual line to the component: fuel pressure regulation vlave NXXX

X)
guide the actual line into the vessel MIN X,Xl

X)
Start the engine

X)
capture the fuel from the component in the vessel: fuel pressure regulation vlave NXXX

wait XXs

X)
switch-off the ignition

X)
measure the amount of fuel

required value:

XX-XXXml

if values are not achieved - check component
-fuel pressure regulation vlave NXXX

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