BimmerFest BMW Forum banner

no2

  1. E36/7 Z3 (1996-2002)
    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??
Top