Will a bad o2 sensor cause a misfire

Hello, an oxygen sensor will not directly cause a misfire. The oxygen sensor handles a specific bank of cylinders and it's pre-catalyst measurement of exhaust gases. If the sensor was influencing the cylinders, it would influence 3 of them - not only 1. In this case, bank 2 which isn't even where cylinder 1 is. I would address the concerns separately. Check each cylinder for spark plug or coil concerns for the misfire. Check engine compression as well. For the oxygen sensor concern, check wiring and resistance and likely you'll find the sensor may need replaced. Go original equipment MOPAR sensor for this if a sensor is needed. Then recheck. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.