Review on Enhanced Denso 234-2000 Oxygen Sensor for Improved Engine Performance by Eric Mueller

I needed two new sensors for my Corolla. The workshop listed $160 each plus installation. It sounded a bit pretentious, so I went online and did my homework. I found this sensor and a similar one according to the manufacturer's requirements. However, these universal sensors don't come with a connector, but that's the part that doesn't wear out. You can use the old plug. With a bit of soldering and some tape I saved over $200 in parts and installed them myself (it was easy for my machine). Since then, the check engine light has gone off again and the machine runs smoothly and without any problems.