Review on 🔌 Denso 234-4603 Downstream Oxygen Sensor - 4-Connector 33.1” Wire Harness for Enhanced SEO by Marco Roberson

Vehicle used on: 2003 Camry LE 4 cylinder. Problem: The check engine light generated P0420, a code related to the efficiency of the catalytic converter system. I did a little research and narrowed it down to a bottom oxygen sensor. After digging FURTHER, I settled on the "No Fouling Spark Plugs" trick (google it). I won't go into detail. Basically, this part will save you over a hundred dollars by ordering here from Revain versus stealing. The wires on this O2 sensor are TOO LONG so I needed tape to tie them together to keep them from flapping around and hitting the cat and exhaust. Also, the trim for the 2003 Camry is WRONG. The grooves are all wrong so it didn't snap/go into the receiver. I had to grind the grooves in the cement to make it slide instead of messing around with the block reset and getting the right one. Still worked, just needed to change it a bit so be careful. FINALLY taking my old O2 sensor off was a pain in the ass. I highly recommend using the copper anti-seize compound that comes with the O2 sensor. That way it saves the next person the heartache of being removed if something happens.