Two problems with that......
The mineral spirits isn't strong enough to cut through most of that stuff. You need a good carb cleaner
The other problem is that none of it will be drawn through the IAC that way and that's problem the most important thing to get flushed out.
ok heres the problem i have with using carb cleaners
on throttle bodys inside there and this is not to insolt your intelligence by any means however proffesional tecks people like sam memmollo
from two guys garage have stated on there show and
on there radio show that you never should use any
kind of carb cleaner on there because theres
a protective coating from factory on there and by using carb cleaner your washing it away if anything
i would be using
a liquid spray made to only clean throttle bodys.