FEZZ00

Hi guys i am just checking with the forum I previously had lots of low voltage faults from an aftermarket battery . i then brought the OEM battery and immediately all the faults were gone except for one the car keeps coming up on Xentry that the lambda sensor bank 1 has been swapped muliple misfires detected.

the question now is that are the left & right sensors being swapped around or the upstream and downstream are incorrect, the misfires which is strange is coming from bank 1 not bank 2

would appreciate some input from members as to possible senarios