when you unplug your iacv, does ur idle suppose to drop and stall out? or does the idle start the surge? when i took mine out, it started to surge, and i am having a little idle problem so i would like to know if its my IACV.

 

it should throw a MIL and drop way low, but not die OR 'surge'

unplugging is actually part of the idle set procedure.

 

so if my surges does it means i have a vaccum leak somewhere? or a misfunctioning iacv?

 

if it still surges after the iacv is unplugged, then you can bet it's a vac leak!