Engines / Petrol / MED 17.5 CAN general / Test - Intake air mass sensor

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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 = idling
- engine temperature = ambient temperature
- appliances = OFF

connect with the control unit XX - engine

XX - Measured values group XXX
required values:
field X = X - X g/s

XX - end of communication

if values are not achieved, check part:
- Intake air mass sensor
- line
- air filter
- tightness of line

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