I believe there's a fused heater in one of the O2 sensors. I think it's the post Cat one. They have been known to blow and it's a cheap/easy fix if it's just the fuse.
__________________
|RIP|6spd-sport|OSG-LSD|XP8|RBF600|Eibach Sways|RE-71R|FI-34Row|Gen3-CAI|Yaw P.S.|
|