I recently installed a predator in my truck but had a custom tune done to delete the rear o2s and cot.Its been 3 days since the reflash and today the light came on for p30(bank2 below efficeny threshold).I dont know if mabey the computer is trying to learn it self or what but it is pissing me off.I think my truck is cursed.I had this tune done 2 weeks ago and had the guy send me the tune again to make sure and same thing..Any clue peeps?