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Also normally when you change 02 sensors i would recommend both on these cars! I changed my front but not my rear. I got this same code but after a couple of days it went away. I still need to replace the second 02 tho..
 

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If I'm not mistaken Chrysler uses the signals from both oxygen sensors in adjusting the fuel mixture for the car. If a sensor goes bad the car can run like poo as a result, and that has the potential of damaging other things, including the catalytic converter. That makes CaliburGuy2021's suggestion of replacing both a good idea, and be sure to use a GOOD oxygen sensor (like a Denso), not some Dorman or no-name POS.
 
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