Check engine light

My check enginge light wont go away. We used the scanner and it gave the code p0505. that code was for the IAC motor. I replaced it and it still the check engine light comes on. Does anyone know what else might be the problem?

I'm too lazy to read the whole thing but here is a LONG article about idle surg (normally associated with CEL p0505)

http://www.dsm.org/how-tos/tttt/tttt3.html

You might want to check this out also:

http://www.dsmtalk.com/forums/showthread.php?s=&threadid=87845&highlight=p0505

Hey, Thanks for the info i'll try it out, and tell how it ends up.

i havent been able to do the steps that the website said, but now my car rpm's are going up and down when idle.