Engines / Petrol / MED 17.5.21 UDS general / Test: intake air pressure sensor (G71)

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Mark	Model	Control unit	Diagnostic operation

Mark

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

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Conditions:
• engine speed = X rpm
• engine temperature = ambient temperature

connect with the control unit XX - engine

Advanced Measured Values

select item in menu:

IDEXXXXX - intake air pressure - raw value
IDEXXXXX - filling pressure - actual value
IDEXXXXX - Ambient air pressure - atmospheric pressure

TIP! For easier search in the menu, enter the code IDE, ENG or MAS into the "Filter" window

desired condition:

IDEXXXXX = IDEXXXXX= IDEXXXXX ± XX mbar

if values are not achieved, check part:
- atmospheric pressure sensor
- intake air pressure sensor
- wiring

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