Audi Workshop Service and Repair Manuals

• ‒ Read measured value block, Display Group 02, engine at idling speed

• ‒ Check readout in display zone 4.

• Specified result: 1.8...4.0 g/s

If specified result is not attained:

• ‒ Switch off ignition.
• ‒ Detach the connector for the airflow meter =>Overview of installation locations, Page 24-4.
• ‒ Switch the ignition on.

• ‒ → Connect the multimeter for voltage measurement to the following contacts on the connector:

If the specified results are not obtained:

• ‒ Connect the V.A.G 1598/22 test box to the wiring harness for the engine control unit.
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The following wiring connections should be checked for open circuits and/or short to positive or negative:

• ‒ Rectify short circuit or open circuit if necessary.

If no fault is detected in the wiring:

• ‒ Renew airflow meter (G70).