I have a 2002 530i that runs great, until it feels as if the gas isnt reaching my engine properly, and causing it to lose acceleration drastically until eventually spitting and sputtering to a stop, im thinking caty converter, diagnostic recommended i inspect exhaust system and cat, and spit...

Salutations friends I am gladly but aggravatingly driving a 2002 530i that intermittently loses power , as in acceleration , it will sort of kick and become almost irrelevant to give it gas BC I'm not going over 10 mph and it has me thinking its my cat converter , or the rear o2 sensor because a...

My 1998 Z3 passes the CO2 easily but not eh NO part. It is fine at low rpm's but not under load or at high rpm. It is tuned perfectly and has a new ODB II catylitic convertor. It doesn't code for Oxygen sensor. Any sugestions??