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idle seems rich

Old 06-15-2011, 01:38 PM
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Default idle seems rich

2002 LS1, h/c/i, 60lb inj.
When the car is up to temp, aem wideband is showing idle around 12.5-13 and
the exhaust is a little more stinky than usual. Also on decel or just coasting in any gear wideband shows 12.0-12.5 and again fumes.
While cruising and WOT wideband readings are accurate
Could this be tune related, ie. to much fuel at idle or decel?
thanks
Old 06-15-2011, 02:34 PM
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Yes it be tune related. Go back to the tuner that tuned your car and ask him/her to adjust the idle air and DFCO settings.


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