Question about 1998 Audi A6

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Audi v6 2.8l (AAH) warm misfire at idle

I have a misfire issue when the engine is warm and at idle. The warmer the engine gets the worse the misfire gets. I have checked and there are no fault codes (it's a 1993, non-OBD-II ECU) I'm running 98 Octane fuel. I have changed plugs, leads, and swapped the injectors with those from another 2.8l. The cam timing is fine (checked with factory tool).

Any ideas guys?

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  • Anonymous Jan 19, 2009

    sound like rings are gone does your car slightly hunt occasionally.. just been quoted between £2000/ £3000 for rebuild on 2004 a6 1.9 tdi

  • Anonymous Mar 28, 2014

    misfire on idle

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It is necessary to replace rings on pistons.

Posted on Dec 21, 2008

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And for .......

Car not starting or turning over indicates towards multiple possibilities. It can be issue with battery or weak battery. But if battery checks out ok, then it can be starter issue or faulty alternator or problem with low fuel pressure or no spark at spark plugs due to dirty spark plugs or faulty ignition coil or injectors getting cracked or dirty and needs to be cleaned.


To confirm the problem, the basic troubleshooting is required.


Click this link below and follow the troubleshooting:------

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This will help.

Thanks.







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