A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

Random multiple misfire

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Old Apr 16, 2018 | 08:34 AM
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Default Random multiple misfire

hey folks I’m new here,I have a 2001 A6 Quattro V8 the issue is all cylinders are showing a code for misfiring and I’m wondering what are the possibilities or remedies and if anyone else has had this issue.. fuel pump is new,fuel pressure regulator is new,fuses and relays are all good too... codes show system too lean and system too rich as well as 02 sensors on both sides as in need of attention... any ideas or other troubleshooting notes! Thanks
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Old Apr 16, 2018 | 08:56 AM
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Do a smoke test and fix your vacuum leaks.
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Old Apr 16, 2018 | 01:00 PM
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Ok thanks will do
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