I have an 04 RSX Type S with 35,000 miles and ive been tuning alot with KPRO. Ive noticed for the past week or so that my idle would always stay at around 1500 when i set it at 900-1100... i thought it was because i set my idle to lean, or rich. After playing with it, it still did it. Well as of TODAY, it started jumping from 1k-3k rpms, and it WONT stop. It did it ONCE 2 weeks ago, but my friend said that it was something KPRo fu**ed up on but would go away. Would this be my IACV at such low mileage? I have NO vac leaks. And ive tried different .KAL maps, including the one that worked great a while back.
What does this IACV look like? Im used to B series. What color is it.. front side, under or back of the TB?? help me out here. screen shot would be helpful. Im gonna disconnect it and see what it does, but for now. im highly irritated

What would cause this problem at such low mileage??

 

Have you checked your coolant?

 

good question... ill check today!