[V6-12v] Rough Running Engine

Kent McLean kentmclean at comcast.net
Tue Nov 3 07:18:48 PST 2009

David Torrey wrote:
> Are there any 12 valve V-6 owners left?   

Not me, but the owner of my old '94 100S Avant thinks I'm still responsible for 
one. :)

> I have a rough running engine, not a dead skip. 

First thing to do is pull the codes:

If there are no codes, then we need more:

Is it rough at idle but smooths out at speed?
Does it have normal power, but just runs rough?

Pull the codes first.

Kent McLean
1990 V8 w/5-speed and other mods
1991 200 TQA #3, with mods
1999 A4 Avant, V6 Tiptronic
gone: '91 200 TQA x2, '94 100 S Avant, '89 200 TQ "Bad Puppy"

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