Got a nice surprise this morning, a CEL with the code p0111. Checked it out and it is a code for, "Intake Air Temperature Sensor/Rationality." I have no idea what this means. Could I have the dealer re-flash the computer even though I have mods to my truck? Could any of my mods triggered this code?

 

I remember that I had the dealer do this flash for this & the battery temp sensor as well. I believe its for the outside temp sensor. I thought that there was a TSB. But I can't remember what it was. Maybe someone else will chime in with an answer.

From your mod's it doesn't look like you could have caused it. It will all depend on the dealer you go to if they'll charge you or not.