Hey guys new here.. so I am currently banging my head against the wall.. we had a engine warning light come on.. got it in for diagnostics and got told it was lambda sensor bank 1.. so replaced it.. still the same so I took it back.. got told it's now bank 2.. had them do that.. now revs still won't go past 4000rpm but nothing coming up on dash or garages code reader... Tried 4 different places and nothing so now I am here trying to see if anyone has a idea?.. thanks in advance.. Zach
