First off, hello everyone!
Ok so, my check engine light comes on and I hook up my diagnostic computer and it tells me that the manufacturer air/fuel circuit is malfuntioning. I took it to a repair shop told them what it told me and said they may want to hook it up b/c they would know what that means. I said that it might possibly be the O2 sensor, but I'm not an expert. They did replace the O2 sensor and I picked up the car. No check engine light. I assumed it was fixed. I drove the 20 minutes home and when I stopped at the store and got back on the road it came back on. I called the shop and they said to bring it back. I hooked up the computer again and got the same code. Anyone have a clue?