I also been having the problem over the past year (07 roadglide +/- 35,000mi.), last year I would occasionally start the bike and it would idle high, then return to normal. then occasionally during an extended ride while coming to a stop - down shifting approaching a stop idles down to a stall, will restart with no problem. this happens for a few stops during the ride, then will not happen for a while. I cleaned the IAC ports with seafoam cleaner and throttle body after reading some of the post on similar problems, seem to be OK for a while, problem reappeared, brought it to an independant shop, they replaced the temp sensor, did not have a problem the rest of the summer. This year started riding no problems, then the stall problem appeared sporadically, I spray cleaned the ports again and the stall issue still shows up once in awhile. I feel better that I'am not the only one with this problem. Brought it back to the independant shop they checked it out and road tested it for 30 miles and said they had no issues with the bike. I plan on replacing the IAC (step motor) myself, from what I read in the service manual, it isn't that complicated. question is does the tank have to be removed to get to the two screws? any comments/suggestions on the replacement would be appreciated.
Larry