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Old 01-21-2013, 05:45 PM   #14
Scooby Newbie
Member#: 299442
Join Date: Oct 2011
Location: Southern Ontario Canada
2005 Forester XT


That is what I found rather odd, from everything I've read its fairly acceptable to have your idle afr fluctuate up to one whole point and the rpm is very steady that had never been an issue. I have found if I up the rpm at idle it does improve but still not as smooth as it should be. I do see the ignition timing fluctuate a few degrees at idle, but I don't believe that will change the afr. I could be wrong tho.
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