Hi, thank you very much for your reply. No, I am not offended about your question, but I do know the difference between an a/f and o2; the upstream is a/f pre catalytic converter dealing with a?F ratio and the o2 is post catalytic converter measuring the health of the catalytic converter. Also, in my case, I could not possibly install the wrong sensor, because the wiring quick disconnect block between the upstream and downstream are completely different (different connector's locking mechanism), so even if you don’t know much about this issue, you can't accidentally interchange them on the 2011 Honda cr-v. So, I may have received a bad a/f sensor, that thought crossed my mind quite frankly, because like you said, the ohms reading is indeed on the low side. I did check the fuse (#11) already, was the first thing I did and it was (is) good. Question: the cold ohms reading is obviously different from sensor to sensor, do you know by any chance what the correct reading should be for a cr-v a/f sensor? I tried to google it, but no luck.
Thursday, September 19th, 2019 AT 6:57 AM