Engines / Diesel / 2.0/103kW TDI-CR CBAx / Test - 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 = ON
- engine speed = idling

Note:
X bar = X,X MPa
X bar = XXX kPa
X bar = XXXX hPa
X bar = XXXXXX Pa

connect with the control unit XX - engine

wait XX s

XX - Measured values

group XXX

field X = fuel pressure - high: required values
field X = fuel pressure - high: actual value
field X = fuel pressure regulation vlave

group XXX

field X = Fuel metering valve

Start

required values:

X)
fuel pressure - high: actual value = XX-XX MPa (XXX-XXX bar)

X)
required values <-> actual value: the maximum permissible difference is: X Mpa (XXXX kPa, XX bar)

X)
fuel pressure regulation vlave - alternating = XX - XX %
X)
Fuel metering valve - alternating = XX - XX %

Picture documentation:

+ N276 - OK

if values are not achieved - check component:
- Low-pressure Fuel system
- fuel pressure regulation vlave (NXXX)
- Fuel metering valve (NXXX)
- pressure sensor - fuel pressure
- Fuel metering valve
- hipressure pump

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