take your throttle body off and tell me if your movement of the throttle body linkage is screwy, my throttle body is different from the ones bagged has layin around, mine uses some weird double linkage crap and it really doesn't have the smoothest movement, it feels like the butterfly screws are loose but they're not, play with it and tell me if you can move the throttle without movin the butterfly if you get what i'm sayin. my car used to do that but it hasn't in awhile, but my throttle feels like crap, i mean it doesn't really effect my day to day driving or WOT but if i'm trackin it and i need to have precise throttle it irritates me. i'm just tryin to buy a house at the moment so i'll live. lol.