I dont remember if clockise or counter-clock...

anyway, the point is that the idle may have been adjusted previously and now the iac cant do the thang it's supposed to, which is more than really I comprehend well enough to explain,ie: will it cause the computer to give the "replace MAF" code. Seems logical that it might.

1989 5 door montero 3.0 auto
stock original Japanese
about 200k miles