Review on Efficiently Monitor Air Fuel Ratio with Denso 234-5010 Sensor by Jeffrey Choudhury

This is an inexpensive alternative to other brands that some reviewers say don't work either. HE and Denso are OEMs for many Japanese and Korean vehicles. I replaced my O2 sensor based on a code I received after diagnosing it with an OBDII scanner. The device arrived on time and neatly packaged. However, the markings on the packaging and the actual device do not match and although the item was sealed plastic the packaging looked as if it had been used due to some tarnishing. So far it works and it's been a week since I installed it. Time will tell if it works.