This is more of an annoyance than anything else. it fluctuates 2-300 rpm's when im sitting still...but it doesnt do it all the time, it sorda picks and chooses its times! ive changed the plugs,so what else can i do to remedy it? ive heard of changing out the TPS, but i would assume thats kinda expensive and im not gonna drop a lot of cash on this. let me have any of ur ideas...thanks!