Engine code

[Ram limited 2019]

2019 Ram limited 5.7 hemi with 17,000 miles. Engine light keeps coming on. Code P219b (air to fuel ratio imbalance bank 2). Has been to the dealer 4 times. First, said all it needed was an update to the computer, light came back on 3 days later. Second time, bad O2 sensor so it was replaced. Third time, other O2 sensor was bad, replaced. Didn't get it home and light came back on. Fourth time, left at dealer for two weeks. Said computer needed updated again. Dealer drove for a few days and said light never came on. Engine light came on again today with the same code after one day. Has anyone had an issue with this? Any help would be appreciated.

 

[Dodge 1500 4X4]

Bank 2 is even side of engine ( passenger side) have the dealer check the injectors on that side causing the air to fuel mixture ratio imbalance, you may have a injector or coil going bad, have they got a misfire, that will tell them the cyl # they can check that side with there scan tool, try a different Dealer they are Bone Heads!!!