5.7 hemi rough idle and low backfire out exhaust any ideas

well you got me there im not sure about heaters in the o2's i did not know there were heaters for those the harness is from hotwire so i assume they may be there somewhere i checked fuses and do see any bad ones in the fuse block i think the code was po139 bank one sensor 2 or something like that the car had not been run for about two months and this was just after startup