I don't know the code yet because I don't have anything to read it. I just ordered something to read codes today. I replace the converter because it was cracked and I could tell where it was. The original converter only had one sensor. And it was located behind the converter. It did not have two. the only sensor was located after the converter between it and the exhaust pipe. If my car does have two centers, then the other one is not located on the converter itself. Maybe it is somewhere else. I guess that is why I'm so confused. I put the old sensor behind the converter on the new park just like it was on the old part. I'm only assuming we damage the o2 sensor but until I get the code reader I won't know for sure