Oh, I assumed there would be a manual adjustment like there was on my Supra. Thank you guys for clueing me in. I have checked the air filter, it's in very good shape and clean. Haven't tried cleaning the MAF sensor, have you guys had good results with that? What do your cars usually idle around? Mine sits pretty consistently at 500 RPM. I did not hear any vaccuum leaks, but yeah maybe it's the IAC.