CEL for O2 sensors after tune?
I have a C6 corvette that just got longtube headers put on. I paid a guy with a HP tuner to tune the car after.
Everything was fine but after about 10-15 miles my CEL came back on. It’s all for the downstream O2 sensors. I was told he put the tune in to delete those rear O2 sensors, but it seems that’s not the case.
I messaged him and his first response is it must be new codes that popped up. I’m not super knowledgeable on tuning, but the 4 codes P0136, P0140, P0156, P0160 all seem to be linked to the rears which I asked about prior to him tuning.
Did I get scammed or is there something else that needed to be done in the tune so the car doesn’t keep the CEL on?