idle seems rich
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

