BAD O2 SENSOR?? JEEP 4.0 MISSFIRE SOLVED - UPSTREAM OXYGEN SENSOR REPLACED

I have frequent questions about Jeep 4.0s rrunning roughly even though many ignition components have been replaced. I recently experienced this in the General Grievous ZJ and now I can confidently report that this problem can be caused by a bad upstream O2 sensor. Hope you guys enjoy!
#Jeep #XJ #ZJ #missfire #Roughidle #O2sensor #OxygenSensor

Upstream O2 sensor - Bosch 13399 - https://amzn.to/37ZCHBe
Downstream O2 sensor - Bosch 13138 - https://amzn.to/3s7r3vj

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Hey, what’s up, guys? I hope you enjoyed another project. Please remember that this video product is meant for entertainment purposes only and intended for people of driving age, and that is not “made for kids”. Also Please Keep in mind I am not a professional and I have no professional training so don’t try this at home. If you decide to modify or fixing your own vehicle please keep it legal, roadworthy, and most importantly SAFE. Thanks for watching and I’ll see you on the next project! ✌️