Eurovan V6-2792cc 2.8L (AES) (1998)
Air Flow Meter/Sensor: Testing and Inspection
Mass Air Flow Sensor, Checking
Special tools and equipment
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VAG 1551/1552 Scan Tool using VAG 1551/3 adapter cable
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VAG 1598/18 Test Box
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Fluke 83 multimeter (or equivalent)
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VW 1594 Adapter kit
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Wiring diagram
Requirements
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All electrical consumers switched off (radiator fan must not run during the check)
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A/C switched off
Test sequence
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Connect VAG 1551 (VAG 1552) Scan Tool. Refer to Scan Tool Testing/VAG 1551 Scan Tool See: Testing and Inspection
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With engine idling, press buttons -0- and -1- to select "Engine electronics" address word 01.
Display will appear as shown
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -8- to select "Read measuring value block".
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Press -C- button.
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Press buttons -0- -1- and -6- to select "Display group number 16".
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Press -Q- button to enter selection.
Display will appear as shown
Read measuring value block
HELP
Input display group number XXX
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Press buttons -0-, -1- and -5- to select "Display group number 15".
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Press -Q- button to enter selection.
Display will appear as shown (1 to 4 = Display fields)
Read measuring value block 15
->
1
2
3
4
-
Check load registration specification 1 (Display fields 2 and 3).
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Press -Q- button to enter selection.
Display will appear as shown (1 to 4 = Display fields)
Read measuring value block 16
->
1
2
3
4
-
Check load specification 2 (Display field 3):