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Afternoon DTC quiz...

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Old 03-05-2003, 11:32 AM
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Default Afternoon DTC quiz...

The following DTC's are found on an perfectly running, chipped S4 with down pipes.

2 DTCs Found:
17545 - Long Term Fuel Trim Add.Fuel (Bank 1) System too Rich
35-10 - - - Intermittent
17547 - Long Term Fuel Trim Add.Fuel:Bank2 System too Rich
35-10 - - - Intermittent

What are possible causes?
Old 03-05-2003, 11:36 AM
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MAF or O2 sensor(s)
Old 03-05-2003, 11:57 AM
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MAF
Old 03-05-2003, 12:02 PM
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Yup, sounds like the MAF of 02 sensors
Old 03-05-2003, 12:24 PM
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Heh, sounds familiar . Thx again for the help!
Old 03-05-2003, 12:26 PM
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No problem...BTW, YGM.
Old 03-05-2003, 12:31 PM
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Default And the final clue...MAF plot from VAG...and a timing questions...

<center><img src="http://pictureposter.audiworld.com/18887/maf_and_timing.jpg"></center><p>Also as a bonus, it has ignition timing. Seems low for x-chip...can the MAF effect timing???
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