I got the code pulled by autozone and ofcourse left it in the truck.. something about an idle control? I disconected the battery to see if it would go away and no such luck.. so before I take it to the dealer tomorrow.. any ideas? truck runs fine

 

Prob need a new IAC valve or Idle air control valve. Some try and clean it and you could try if you want. It will be near your throttle body and have a small round body with
either 2 10mm or 8mm holding it in. If you do get a new one make sure you get a new
gasket with it too has the old one is prone to crack when you remove it. If you do try and clean it will prob need a new gasket and some carb cleaner.

 

Here is a picture of the IAC valve:

 

this is just a thought ahah u probly got it fixed by now but when i was fixin my sisters car i had the airbox off and hadda pull a sensor out there, the check engine light was on but it still ran fine