Sensor 1 circuit 1 slow response. Not sure how to tackle the problem the o2 sensor was replaced about a month ago so I do not think the o2 sensor is bad. A friend and I replaced the catalytic converter a couple weeks ago and everything is fine (no exhaust leaks or anything) but the weld is not exactly perfect so could possibly be a tiny exhaust leak? The manual for my car says it is either faulty wiring to the o2 sensor, an exhaust leak, or a bad PCM. I went to a pick and pull and got another PCM from a base model 2003 automatic transmission Vibe. I have not put it on or anything yet. Any advice?
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Wednesday, May 9th, 2018 AT 8:33 AM