I have a 03 cobra basic bolt on mods. i drove it and it ran fine. I shut it off and restarted and it ran bad. There were 2 codes saying bolth 02 are rich.
I cleared the codes like a dumb ass. I know the 2 codes that it had said that bolth bank 1 o2 sensors are stuck rich.
I drove the car to my buddies and it was fine. i sat there for 45 min and went to restart and it had a rough idel. Then the ses light came on and i retrieved these two codes.