BMW 3 seies 1.8 2003 - Engine not running smooth #Archived Message
Posted by Leslie Smith on July 6, 2007, 10:05 am
engine not running smooth and a little under powered. checked with solus and 02 sensor 1 inactive. fitted new sensor now 02 sensor 2 inactive all the time. At tick over engine will start to increase in revs slowly to about 1800 revs and the front o2 sensor becomes inactive for a couple of seconds then goes back to active. This will be OK for about 3 mins then same again. Also 02 sensor ready bank one: Yes. 02 sensor ready bank 1 after cat NO. Do you think after cat sensor would cause these faults. regards