Can anyone tell me which of the sensors is bad? Location? Post or Pre? Which sensor of the particular location?
and Zell, I have a 99, so would that mean I need this instead?
Oxygen Sensor, fits on CATALYTIC or on MANIFOLD, 990mm, 323i/is/iC (1998-99), 328i/is/iC (1996-99), M3 w/ 3.2L (1996-99), sold individually. NOTE: Each model-year listed requires varying quantity. Please check your car first before ordering.
Last edited by zhenkaaaM3; 08-31-2012 at 06:38 PM.