Denso 234-9109 Air Fuel Sensor
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I have a 2008 Outback and don't know if it's the same as the 2011. I purchased a unique tool but never used it. I didn't take the wheel off. My sensor was located in the lower front engine area on the passenger side. To gain better access to the sensor, I removed two (2) plastic panels. It's a pain to get to, but if you take your time, you can remove the sensor and replace it with a 22mm box wrench, channel locks, or whatever you have on hand. It's possible that you'll have to unscrew (unbolt) the clamp that holds the sensor wire to the frame, but it's not impossible. I estimate that I saved several hundred dollars over the cost of a repair shop.
Yes. The box came with a small blister pack.
Selected User Reviews For Denso 234-9109 Air Fuel Sensor
When I connected my scanner, I received a code for a bad Air/Fuel Ratio Sensor. br>This Denso Sensor is identical to the one Subaru uses as an OEM product, with the exception that you don't have to pay extra for Subaru's logo to be slapped on it. It took about 30 minutes to install, and it fit perfectly like the original sensor. Minutes. The code was cleared, and the car now runs perfectly, with no more annoying check engine lights. If you own a Subaru, you'll want to get a Denso sensor. This is a product that I wholeheartedly endorse.
It was a major undertaking for me to replace this. This part isn't cheap, so I put a lot of faith in it. The part was packaged in brand new off-the-shelf packaging when it arrived. Nothing had the appearance of being a fake. I believe the product came with an anti-seize compound that looked like liquid copper. The wiring was perfectly screwed in and was the perfect length. I could have saved a lot of money.
There is an error in the Amazon listing. Our 2013 Subaru Impreza 2 was listed on Amazon as "doesn't fit. " 0i, but it's the factory-installed part on the Impreza. It even has a color scheme. The wire clip from the original is included in the coded green version. The OEM sensor is manufactured by Denso, and the part number is listed as such. It was the perfect match. However, I'm still baffled as to why the factory sensor only lasted about 51K miles. It has anti-bacterial properties. take hold of the threads and add more anti- If you require it for any reason, please seize it.
I've only had the '12 Forester for about two months and 300 miles, but so far there have been no CELs and the "rich" exhaust smell has been eliminated. It has the same appearance as the factory sensor, but it is significantly less expensive. Thanks. If anything changes, I'll update the review.
OEM sensor brand for Subaru applications. For my 2011 Forester, I fixed a p0174 (lean bank 1) code. The threads were lubricated with a small blister pack of copper-colored anti-seize lubricant. I'm guessing this is the same sensor found in any Subaru with a 2. For those who don't know or are curious, this is a wide band sensor from a 5L naturally aspirated engine.
The color scheme is green for upstream and black for downstream. Replacing downstream at the same time is a good idea because Amazon sells downstream. The P0420 code can be cleared with a simple replacement. After two weeks, there were still no codes. Forester is worth 120 thousand dollars.
For the upstream sensor, this is an exact OEM replacement. To remove the old sensor, I had to use some ingenuity with the wrenches and offset socket.
This is the same one that came standard on my 2014 Impreza. I replaced it and turned off the engine light, then drove around in my car with a scanner connected, and all of my emission monitors passed with flying colors.
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