'05 Chevy 2500HD
Howdy, I've been getting this code frequently since I installed my bb tune. I have replaced both sensors before the tune, and light never cam back till after tune. I ohmed the sensors and they test good. I replaced the harness because of a broken connector and it came back. It doesnt come on constantly. I will go a few hundred mi before it comes back. It comes on while I'm in tow haul mode mainly. Just towed 5k camper 190mi and light came on when I got there. Cleared and 10 min into drive home it came back. I have emailed Justin but got no response. I know he's busy, so I'm not angry, but I am pretty displeased. Has anyone ever had this issue?