IACV cleaning v3 sti
 

Does anyone have a guide for cleanig the iacv? If not any advice on what to watch for please. I have undone the 12mm bolts and removed it from the inlet manifold and sprayed some brake cleaner in it but didn't change anything. When the car is on idle the revs are at 800 rpm then give it a little rev and it nearly stalls. Un plug the iacv and the revs go back to 1000rpm am I right that the iacv is to blame.
Thanks in advance.
Oh yeah this is all when the car is warm and what is the right gaps for the plugs

Anyone