I have a 2012 Accord Euro 2.4 Luxury Auto, which idles at cold start up at 1500 to 1600 RPM.
When warmed up this drops to 1100 RPM. Does anyone have suggestion as to why & what to do?
I have had it at two Honda dealers who reported it was operating within spec, but I don't think this is right? Any help appreciated!

Euro12