for those of you Search monkeys like me, trying to find the IAC's EXACT location; it's directly on top of the TB. first, remove your airbox, and intake tube, be sure to unplug your IAT sensor from the intake tube...you kinda need that
. you'll need an 8mm socket to remove the 3 (i was told 2, but there's 3) throttle cable bracket bolts, and move that out of the way to the side. now, get a torx bit (i wanna say T-20, not sure) and remove the 2 screws holding the IAC in it's housing. they may be really hard to remove, mind had red sealant on the screws themselves. once those are out, the IAC will come out with a slight bit of pressure pulling straight to the passenger side (outward from the housing, it's simple to figure out). clean the o-ring, 0-ring seat and the sensor tip with a bit of Alcohol. also, clean the edge of the "seat" around the edge of the spring housing. once it's clean and DRY!!!!!, put it back in. if you're lucky like me, and this was your problem, you're idle should now be smoother than you've felt it in a VERY long time!
hope this helps someone!