It has trouble idling especially when it is cold. I checked OBD2 for codes. No codes. Had O2 sensor codes about six months ago but both O2 sensors were replaced and has since been fine. It was idling bad at that time and the O2 sensors did not fix that idling problem although the codes never re-appeared. I changed spark plugs and air filter. I suspect that maybe the IACV is a potential problem, but there are no codes. Any ideas?
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Monday, January 1st, 2018 AT 12:07 PM