Engines / Petrol / MED 9.1.2 general / Test - electromagnetic valve for the active carbon box (N80)

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Mark	Model	Control unit	Diagnostic operation

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Select a vehicle make or a common group such as Service Intervals, Engines, Transmissions, Immobilizers and Independent Heaters.

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

This operation was considered useful 1x.

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Conditions:
- engine speed = idling
- engine temperature > XX °C
- on-board voltage > XX V

connect with the control unit XX - engine

XX - Basic settings group XXX
activate default settings

Test X
sharply depress - accelerator pedal (engine speed XXXX rpm)

required values
field X = OFF -> ON

release - accelerator pedal

Test X
sharply depress - accelerator pedal (engine speed XXXX rpm)

required values
field X = OFF -> ON

release - accelerator pedal

Test X
sharply depress - accelerator pedal (engine speed XXXX rpm)

required values
field X = OFF -> ON

release - accelerator pedal

wait XX s

required values
field X = TEV-OK

if values are not achieved - check component:
- electromagnetic valve for the active carbon box
- line
- tightness of line

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