234-9042 Air Fuel Ratio Sensor

OEM spec Denso O2 sensor. This is an identical OEM part, so it fit perfectly and performed as it should. Yes, it is two or three time more than some copy, but it is the exact right part, not something generic and the original lasted 20+ years.

I had a check engine light on a 2002 Toyota Camry. Tried to save money by buying a cheaper sensor. Ended up with the same check engine light/error code. I spent several hundred dollars and took the car to four mechanics. Everyone said it was the sensor but three of them said the sensor checked out fine. Finally spent the money on this Denso sensor after finding two websites that said only use Denso or Toyota sensors. Do not think you’re saving money by buying the cheaper sensor… You will not fix it and you will only have more mechanics bills and who knows what kind of damage you may do to your engine. The only issue I have is the wire was about two or 3 inches shorter and couldn’t use the stock wire hold down. But I’ll take it because it fixed my problem!

Awesome!! You get what you pay for. I ONLY go with OEM Denso for my sensors on my Toyotas. This was perfect for my 2005 Highlander with the V6 engine. It fit Bank 2, sensor 1 which is at the front of the exhaust manifold, directly behind the radiator. The wire was the exact length and the wire colors matched my old sensor. It even included a tube of copper anti-seize. The wire loom also came with the plastic clip that snaps into a bracket. Perfect exact oem replacement!!

I bought this sensor to correct a P0430 on my 2006 Toyota Sienna. It was an exact replacement for the upstream sensor (the one before the front or Bank 2 Catalytic Converter). The connector fit and the cable clip fit perfectly. It took me about 15 minutes to replace the sensor. Most of that time was getting the old cable retainer clip out and removing the rusted screws from the heat shield. I chose to remove the air cleaner feed tube (2 screws) just to give me more access to the sensor connector. The sensor comes with anti-seize grease should I ever need to remove it in the future. Not sure it will fix my P0430 but it is worth a try given the cost of a new Catalytic Converter. The Sienna "seems" to run a bit smoother but that could be my imagination.

Bought this Denso Air Ratio sensor for my 2002 Camry V6 3.0 litre engine that had a Check Engine light on. A local auto parts store did a free scan and found a code of P1155 which indicated a bad air/fuel sensor Bank 2 Sensor 1. This is located on the intake side of the manifold (front right) just below the air intake. I also ordered a O2 socket. After spraying the old sensor with a penetrating oil, I easily removed the sensor quickly. It took me a bit longer to disconnect the wiring harness. I applied the copper anti seize paste to the new Denso sensor (234-9042), and cleared the code by following the instructions below. I saved at least $200 by replacing this sensor myself. I forgot to mention that I tested the two black heater wires on the old sensor before ordering the new one. Set your ohm meter to 200, and any reading other than 2.5 means the sensor is bad. As other reviewers noted, don’t make the mistake of purchasing a Bosch or a cheaper sensor other than Denso, or the problem will persist. To clear the check engine light: Turn the key to the on position. Determine that the odometer reading is displayed. ... Turn the key back off. Push and hold the reset button for the trip odometer While continuing to depress the reset button, turn the key back to the "on" position, but not so far as to the "start" the engine.

I purchased the Denso 234-9042 sensor, but the part number on the sensor body didn't match the packaging. The sensor had different numbers embossed on it, and after installation, the Check Engine Light (CEL) stayed on. I suspect the sensor may be mislabeled or not genuine. I advise others to double-check sensor markings and part numbers to avoid similar issues. I hope Denso addresses quality control issues to ensure accurate labeling and compatibility.

Item was as described. Item arrived on time. Replaced 3 of my 4 sensors on my 2004 Lexus RX330 and it got rid of my check engine/vsc light coming on every 50 miles! I recommend this product!

To replace the former one on my vehicle

El sensor es original Esta a un super precio funciona muy bien con toyota Cumple con todo lo que ofrece Solo Denso para tu toyota

Works great so far, no check engine light.

Funcionó perfecto

Replaced original burnt out sensor 6 months ago. No issues with installation and was able to clear check engine light. This was the best price I could find.

Easy to replace as it is the sensor in the front. Fits perfectly and engine runs smoothly.