audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Mass Air Flow (MAF) Sensor -G70-, Checking|Page 5356 > < Mass Air Flow (MAF) Sensor -G70-, Checking|Page 5354
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Disconnect connector item -3- at Mass air flow sensor -G246-, cylinder bank 2.

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Connect multimeter for voltage measurement as follows.

Connector

Measure to 

Contact 

2

Engine Ground

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Briefly operate starter.
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Specification: approx. battery voltage

If reading does not match specification:

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Check for open circuit/short to Ground in wiring from contact 2 of connector via fuse to fuel pump relay.

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Eliminate open circuit in wiring/short circuit if necessary.

If reading matches specification:

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Connect multimeter for voltage measurement between contacts 2 and 3 of connector.

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Briefly operate starter (engine may start).

Mass Air Flow (MAF) Sensor -G70-, Checking|Page 5356 > < Mass Air Flow (MAF) Sensor -G70-, Checking|Page 5354