2006 SONATA V6 3.3L - P2273 Engine light issue

Asked by Dec 27, 2014 at 02:57 PM about the 2006 Hyundai Sonata GLS FWD

Question type: Maintenance & Repair

I have check engine light comes on first and after driving a few hundred miles later,
light goes off. I drive the car for awhile about a few hundred miles and light comes on
again. Basically on an off. AutoZone looked at it and got an error P2273 - it means
oxygen sensor stuck rich. They told me to keep fuel tank cap tight. or something else
may be defective. I have been driving last two years like this having engine light on
and off. I do not see any engine performance difference. Any ideas?

3 Answers


It is likely an o2 sensor. The code scan should tell you which one.

Thanks for the quick response. P2273 code is the one I get. do you know which sensor might be the one?


all my research says drivers side bank 2 downstream of the cat. you may have to consult a Haynes manual or call a dealer service dept and ask.

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