MICE!! and throwing a code!

[GsXtUrBo98]

So first off im throwing a code... The check engine light came on right around Christmas. I didnt get around to check it out until just two days ago and it said that it was my Idle Air Control system.. Then it told me that i was at closed loop at all times even when the car was warmed up!!!
First step was I put sea foam in the gas tank. Then I was going to unplug the batt. to reset the ECU and when I opened the hood there was a mouse nest ontop of my engine!!!!!!! WTF! Im not sure if they're still in there somewhere or dead or gone...

Just thought that I would let everyone know about that little incident with the mice.. and if anybody has any idea about what i should do about the code im throwing lmk..