Review on 🔧 Denso 234-4011 Oxygen Sensor: Optimal Engine Performance at an Unbeatable Price by Sean Chambers

I had a strange hesitation on my B20B at around 2900 rpm that I couldn't detect. I was told to replace the O2 sensor to fix the problem. I thought that was crazy, the ECU was not reporting a CEL for O2 and I had only replaced this sensor a few months ago for other reasons. It didn't fix the problem then, so why would it work now? Well I dug a little further and found that the problems I was having were due to a heater circuit failure in the O2 sensor (O2 sensors need to be hot to function properly) and I was able to test the circuit by checking the resistance . So I checked the O2 sensor in my car and it was way out of range so not good. So I bought this sensor, installed it and the problem has been gone for a week now! If you have a Honda, only buy these Denso OEM gauges, other brands just don't cut them multiple times. Get the parts you need the first time and save yourself the hassle.