2022 Jeep Gladiator Rubicon / Check Engline Light / rough idle only in reverse or drive

[gladiator22Alex]

Help with issues !! Check engine light codes
I have a 2022 jeep gladiator rubicon . 30k miles , fully stock , daily driver .

Timeline of check engline light : I installed a 10 inch subwoofer( not sure if this is related ) and a week later I got these codes with check engine light

-p563 System Voltage High
-po152 o2 circuits high voltage bank 2 sensor 1
-p1129 closed loop fueling not achieved

I assumed it was the 2 batteries so I got them replaced . This cleared p563 but the other 2 codes keep coming back. And a 3rd code was added P300 random misfire
At first it was just a check engine light on but now the engine rumbles at a stop only in reverse or drive and the check engine light flashes .
Could this be fixed by replacing the o2 sensor

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[Hootbro]

Good luck. Something is causing it to go rich on fuel is my guess. Need someone to look at the short term and long term fuel trims. O2 sensor would be a shotgun part at this stage. P0300 is a cascading failure from the other codes.

I will let others wing ding the suggestions on what to do short of telling you to get it professionally looked at locally.

Edit: I guess you are outside warranty?

 

[goldtr8]

If you have a flashing check engine that normally means to stop driving or serious damage can occur. I am guessing that you are running very rich and might be damaging you catalysts based on the O2 codes with miss fire.

 

[AstroZombie]

fun

 

[gladiator22Alex]

Update : Replaced the o2 sensor . Bank 2 sensor 1 and cleared the codes .
it’s been 4 days since and it’s back to normal no issues no check engine

Did not do the dealer route this time because I did not have a 2nd car to go to work . Bought an oem sensor from eBay got it delivered overnight . Took around 20 minutes to replace it myself

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