Denso 234-9049 Air Fuel Sensor

It was perfect length, and is working well.

So, My 2004 2.4L (4 cyl) camry had a p2238 code. My scanner tool stated 02 sensor Positive Current Circuit was low. Solution offered, to replace upstream sensor.The toyota sensor is a Toyota brand number 89467-33080, which is nearly $200. after hours or research and online videos, the Denso 234-9010 was said to be the oem replacement for the toyota.I replaced the sensor, the code went away, BUT the car now had hesitation and would not accelerate smoothly. after 15 miles of running a new code popped up. P0032 heater control circuit high on the this new sensor.Some comments on amazon and even some online video comments had issues as well and even suggested a different sensor : Denso 234-9049 Air Fuel Sensor.I Returned the Denso 234-9010 & bought this Denso 234-9049. WOW, what a difference. No codes, and car runs even better than the original that broke. Engine is smooth and strong. You cannot feel it or hear it when idle. Great sensor. Hope it lasts.

I had purchased one of these sensors from eBay and car kept showing a P2238 code. Research indicated many of these eBay sensors are counterfeit. I was reluctant to blame that sensor since it was marked as Denso. Not finding any other issue I purchased this sensor from Amazon. After installing this Amazon sensor and clearing the code, have not had any diagnostic codes.

I get a check engine light on and the OBDII scan gave a code of P2238. The Car manual says the P2238 means “Oxygen (A/F) sensor pumping current circuit low (bank 1, sensor 1)”. It is obvious that the oxygen sensor will replaced. My friend offered me to help me to replace the Oxygen sensor and he said all you need to do is to buy a Denso Oxygen sensor and make sure it fit your car model. However, I am an extra careful person and do not want to take any risk. I know that dealer may charge me $400 for an oxygen sensor while I can get here for $100 and my friend can put it on for me for free, but I trust the big dealer. I bring the car to a Toyota dealer and would like the dealer to check and replace the Oxygen sensor. I leave the car with dealer (called AutoNation, Toyota South Austin, 4800 IH35 South). This is a very large dealer and used called Champion Toyota. A couple of hours late, the guy called me and say “okay, your oxygen sensor is okay, but the wire harness goes into the Oxygen sensor is bad. The replacement cost will be $932.82”. I am suspicious of that because the code says “Oxygen (A/F) sensor pumping current circuit low (bank 1, sensor 1)”, If the wire is broken, then it should be no current at all instead of low current. It should not be a wire harness problem. I asked him can you tell me what is the part cost and what is the labor for that $932.82? He said we do not give that details, we only give the total replacement cost. Then I told him that I will think about that to decide whether I will do it there or not and I paid him $68 diagnostic fee. He said “that’s fine but the wire harness can only be get through Toyota dealer, you cannot get from anywhere else and the cost is going to be the same”.Then I did some research and try to understand what the heck the wire harness is. There are four wire connector for this oxygen sensor. One wire is the heating wire which should export a 12 V to heat the oxygen sensor. There are two signal wires, which should output a voltage of 0.2~4.3 V and the reference wire should have no voltage output. What I did was to unplug the oxygen sensor and use a multi-meter to measure the voltage from thatharness socket. The positive end of multi-meter goes to each of the four holes of the harness socket and the negative end of multi-meter goes to the negative end of the car battery. What I got was 12, 3.3, 2.9 and 0 Volts. That harness is perfectly fine! Then I emailed the dealer guy “what voltage he got from these four wire? Why he think the wire harness is not good?” but did not get his responseBased on that, I let my friend installed this Oxygen sensor I bought here, and surely enough, the check engine light now is off and we rescanned the car in Autozone, there is no any error code any more.

Great part!! I just installed on my 08 2.4 rav... just made a huge difference in performance!!! 😀 denso is only required for this car

I bought this sensor to replace the bad one in our 2009 Toyota Sienna. This is the same one that you would buy from the Toyota dealership, only the price was about half of what it would cost at the dealer! I was concerned that the old sensor would be hard to remove. With a cold engine, I sprayed the threads of the old one with some penetrating oil, and the next morning, it came out with a very minimum of effort. When I installed the new one, I put a small amount of anti-sieze on the threads. Total job time: 20 minutes. Don't take your car to the dealer and pay big money to replace this sensor when you can replace it yourself with a minimum effort. Save yourself $150, then treat yourself to dinner and a movie as a reward with the money you saved.

Doesn't work,check engine still there. I ended buying the OEM at the local Toyota dealer now the lights are gone.If your thinking to buy one,just save your money and get the OEM's.

Worked perfectly for my 2009 Toyota Camry. The dealership wanted to charge me over $300 to replace this item. I had a shade tree mechanic install it for me for $15 about a month ago and I haven't had any issues since.