🌡️ Kwiksen 234-9040 Air Fuel Ratio Oxygen Sensor Upstream for Accord 2.4L California Emission - 2003-2007 Replacement Review

Put this in my Honda Accord 07 to turn off the check engine light, it was correct but the light still appears and disappears, seems to work fine.

It was well packaged with a plastic cap on the oxygen sensor and pre anti-seized. I removed the exhaust manifold heat shield and replaced the oxygen sensor. This got rid of my check engine light.

2004 Accord 2.4 Fits perfectly. Emissions passed and the Check Engine light stopped coming on. So I would say it works. As for the long-term IDK. But I hope. TO UPDATE. This O2 sensor has failed. Only 6 months. There is a one year warranty and I will keep my warranty on this item. So disappointing

I loved it, once installed it passed my emissions. After 7 months the check engine light came on again. Very very disappointed in this product. Now it will cost me more time and money to fix it again. Worked great in my 2006 Honda Accord. Don't forget to restart the car computer after installation. It is necessary. My mistake, I didn't reset it and assumed the car was emission ready after installing the oxygen sensor because the check engine light went out. To be on the safe side, I drove 75…

I took a chance on this non original O2 sensor working. It has the same part number (234-9040) as Denso's OEM O2 sensor and is a little over half the price so I thought it might be worth a try. It did absolutely nothing. I cleared the error code and it came back immediately. Same error code, same behavior as the error. Then I bought and installed the Denso version (almost double the price) and it worked exactly as you would expect. The error code has been cleared and the machine is working…