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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Bama Tune Lean?
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<blockquote data-quote="zemog255" data-source="post: 13154165" data-attributes="member: 56138"><p>There's nothing wrong with your tune. Your dyno operator had the AFR "sniffer' in the tail pipe. I have also heard of leaving advance trac on causing a lean condtion to what extent I'm not sure. Anyways the commanded AFR readings are from your factory o2 sensors alot further upstream than at the end of the exhaust. You don't get an AFR that lean and have a running car, or atleast without some very noticeable issues.</p></blockquote><p></p>
[QUOTE="zemog255, post: 13154165, member: 56138"] There's nothing wrong with your tune. Your dyno operator had the AFR "sniffer' in the tail pipe. I have also heard of leaving advance trac on causing a lean condtion to what extent I'm not sure. Anyways the commanded AFR readings are from your factory o2 sensors alot further upstream than at the end of the exhaust. You don't get an AFR that lean and have a running car, or atleast without some very noticeable issues. [/QUOTE]
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2011-2014 Mustangs
Engine/Tuning
Bama Tune Lean?
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