Denso 234 5113 Oxygen Sensor Ratio Review

Worked great on my Ford Expedition eco 16. Half the price the local parts makers wanted and has worked fine since I installed it. Time will tell how long it will go on

Perfect for 2012 Ford F-150 3.5L Ecoboost. I replaced a faulty OEM O2 sensor upstream (bank 1, sensor 1) and have been running it for about a month with no CEL codes. Denso is a major OEM supplier to Ford and Toyota so I have confidence in their quality.

I replaced the pre-block 1 O2 sensor on my Mustang GT with this and my car now idles noticeably better. The b1s1 sensor is out of order. My old upstream oxygen sensor had done about 54,000 miles and was dirty. Covered with charcoal. It issued DTCs. I am about to buy another Denso sensor to replace my top bank 2 sensor. I assume the other OEM sensor is just as dirty and therefore having trouble getting an accurate O2 reading.

One day my engine light came on and the Autozone check says I have 5 engine codes to diagnose. I was very nervous. YouTube Help. I did some research and identified problems all the way down to the oxygen sensor, bank 1, sensor 1, the one before the catalytic converter. This device is on sale from $200 to $50! Received and installed. Luckily my old sensor didn't get stuck like some others. I was able to use a 24" jumper and a $9 sensor jack to remove it with relative ease. The area that cost me…