Review on 🔥 Denso 234-9010 Air Fuel Ratio Sensor: Perfectly Balanced Performance by Tim Sterling

My "Einlos" experience may not be representative, but the "Used - Almost New" sensor that was delivered to me showed numerous signs of wear: the brass plating on the tip was completely burned off/worn off, the tip was covered with debris and badly discolored, sensor body threads are uneven and filled with old granular particles (?old lubricant?), sensor base is discolored and corroded. To be honest any scrap yard can easily match or surpass the part I got. Computer-controlled engines are partially tuned for correctly working fuel consumption sensors, so it is strongly recommended to buy new high-quality sensors for such an important service. I was hoping to get a new or really "almost new" sensor in a damaged package. It was definitely a learning experience for me.