Replaced mine last night. Disconnected the intake plenum but did not re-locate. Was able to move it enough to get it out of my way while working on the plugs. I did, however, stupidly remove the coolant line to the throttle body on accident. Sprayed a little coolant into it, howver, was able to quickly close it off, and no issues after driving this morning.
Thought it may help with rough idle at stop light with AC on, but didn't seem to do the trick. Idles at 675 RPM, goes down with rough idle and jumps back up.
Replaced DILFR5A-11 (assuming stock) with
PLFR5A-11
95,000 miles on an 08 V6 4x4
Thanks for the write up, extremely helpful!