My idle was going crazy form 700rpm to 35000rpm no C.E.L. I did a seach and I needed to clean IAC. I clean it then I got a C.E.L. codes 14 (defective IAC or malfuntion in IAC system) for a week and now I'm getting a code 45 (too rich condition). Now it's reving to 4500rpm and it will take a sec or two to turn off.

What should I do and how do I clean my IAC correctly ?
I have a D16Y7