2006 Accord Engine light codes p0141 and p0420
I own a 2006 Accord 4cylinder 5speed manual.
My check engine light came on a few days ago, and i received these codes: p0141 (b1s2 oxygen sensor) and p0420 (catalyst efficiency) MY mechanic recommended that I start by replacing the 02 sensor. He claims that doing so may eliminate both codes. He quoted me at $200ish for a new sensor with install, which I will probably have someone else do for cheaper, and $450 for used or aftermarket CAT, or ~$700 for OEM CAT. Does it make sense to replace the 02 sensor before messing with the CAT? Thanks in advance for any help! |
Yes, replacement of the rear O2 sensor may very well take care of both codes. There may be nothing wrong with the cat.
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Thanks for the quick reply. Does it matter what brand sensor I use?
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Honda mainly uses Denso brand as OEM O2 sensors. Other brands may work without problems; but, sometimes there are reports of problems. Safer to go with a Denso and Densos actually last pretty long.
The rear O2 sensor will not cause any real drivability problems, so if you want, it can wait a little while you order a Denso sensor through the internet to save some money. What trim level (e.g., LX, EX) is your car? Also, is this a California car or other state? |
Since your car is a 5-speed, it is probably a non-California emission vehicle. The rear O2 sensor is Honda part number 36532-RAA-A02.
Amazon has it for $48.10 (Denso part number 234-4797) with free shipping. "http://www.amazon.com/Denso-234-4797-Oxygen-Sensor-Ratio/dp/B00122EEK2" Here are links showing install, so you get an idea what is involved: Replacing Oxygen Sensor - 2004 Honda Accord LX - hondarepairsite Honda-Tech - View Single Post - 2005 Accord LX 4cyl 2.4 engine O2 sensor |
I replaced the rear oxygen sensor and the engine light has remained off. thanks for the help
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Originally Posted by anticrom
(Post 282419)
I replaced the rear oxygen sensor and the engine light has remained off. thanks for the help
Glad your problem was solved. Happy motoring to you! |
Originally Posted by anticrom
(Post 282419)
I replaced the rear oxygen sensor and the engine light has remained off. thanks for the help
I have the same code in my 05 Accord LX 4Dr 2.4ℓ ... For $50, I'll buy it now instead of waiting for the price to rise (with my luck). No sense spending more on an OEM part if the Amazon part does the trick! |
I think I bought it from a chain like napa, don't see any reason not to get from amazon though
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