I noticed that my 06 CRV, whenever in stop and go traffic, would seem to choke when I brake. RPM drops to about 200-300 but recovers right away. It does not "hunt" for RPMs as is usually described for IAC valve issues. On certain occasions, especially uphill with the AC on, something seems to engage (feels like the aux fan) that suddenly starves the engine of power. I have to put the pedal to the floor to maintain momentum or turn off the AC to get some power back. The engine does not die but is very sluggish. Then after a few seconds, whatever that "engagement" is, releases and all is normal again. Many people say its an IAC issue, but the forums I've read explain different symptoms for dirty IACs. Anyone with similar experiences?