I bought a new gas cap today at autozone. The guy told me he could not clear the code for me because it's against NY State Law. I hate NY. Anyway, he said to drive the truck 60 miles and if it was the cap it should turn off. We'll see

 

Update: A few miles after putting on the new gas cap the light went off. Problem solved for 12 bucks thanks to you guys. I hope this thread helps somebody else. Thanks again.