| I have a 2000 328ci with an intermittant CEL that codes out as "O2 Sensor precatylast bank 2". I am wondering which is bank 2? The one nearest the firewall or the one closer to the grill? I have also heard that these should be replaced in pairs, ie: Both precatylast O2 sensor should be replaced at the same time. If that is the case please explain why this is.
Ben
__________________
"It's not because I'm an aggressive driver, it's because I'm an idiot" actual quote from my wife. | 
Linear Mode
