2005 F 150 4.6L 115,000 Miles

I had my battery replaced yesterday and after about 30 miles, the check engine light came on.

Had the code check at one of the Jiffy Lube places and the code read "Idle Speed, Low RPM."

Anyone had this or a simular problem?
What was the cause and what is the fix?

 

when you disconnect the battery while changing it the computer has to relearn the factory settings .this will cause your truck to run rough untill about 100 miles or so.by it running rough it will send a signal code .drive it for a few days and see if it changes.