Code p0133
 

Recently i got p0133 check engine light,started loosing power,no acceleration,code said slow response bank 1 sensor 1, when i looked under my car i could find only one sensor before my cat,no sensors on by banks.

Please help my car is a 1999 bmw 323is

I think you got this into the wrong forum, gr8. This is Porsche 964/993 (911 from 1989-1997 or thereabouts).

Try somewhere in here.