I have a 1997 BMW Z3 1.9 I my check engine light came on and when I pull the code it says Catalytic efficiency, does anyone know what kind of O2 sensor I need to buy, before or after????\
Thanks, Rebecca
I have a 1997 BMW Z3 1.9 I my check engine light came on and when I pull the code it says Catalytic efficiency, does anyone know what kind of O2 sensor I need to buy, before or after????\
Thanks, Rebecca
Have something to add? Share your thoughts — no account required.
Ask the community — no account required