im still chasing my p101 code for my 03 sierra. after i swapped my 6.0 (stock) in the truck i get a p101 code. i have cleaned the maf,throttle body and nothing has worked. i clear it when it comes up and it goes away for a couple days or even just until i turn it off and then on again it has come back.
the truck is not lacking power at all but i just cant figure it out. anyone???

 

It's in the tune...I had this issue before

 

http://www.hptuners.com/forum/showth...highlight=p101