o2 sensor problem 01/01 on 2005 Lexus SC430

from apr7 to apr12 i chenged 2times o2sensor 1 bank 1 s..Hw lites check ang.;AVS and AVS OFF still on...we can find problems..please halp as..lexus cs430 2005...thanks

1 answer
I would start by learning the English language.
Good luck.