when i was driving around today, i floored it but it didn't feel normal as it normally was. like before redline it sputtered a little, i dunno, it just felt like there a loss of power. felt like like it was misfiring or something. maybe somethings clogged up.

it idles at the lowest 500 rpm in D and i know that shouldn't be normal.
cleaning the IACV should help that but would it also help that sputtering you thiink?

 

got any CEL's on? Have u checked the air and fuel filter lately?

 

i have a CEL on but thats just for the drop resistor i'm sure.
air filter for the CAI if fine but fuel filter dunno. replaced it w/ a 300zx one like maybe a year, year and a half ago...