2002 T6 missfire on 1,2 and 3

handsomened · Post by **handsomened** » 01 Sep 2009, 10:47

I just changed the O2 sensor @ bank 2 location 1 (before cat)
cleared the codes. Now I have a code for bank 1 cylinders 1,2 and 3. Car is running rough and trying to compensate. I drove for some time with the O2 sensor not functioning.

Post by **JDS60R** » 03 Sep 2009, 18:47

Time to inspect the plugs. When were they lst changed?

Also - did you erase the adaptaions before installing the o2 sensor? Is is a new bosch O2 sensor?

I think what you are saying is the new bank 2 sensor is screwing up bank 1 causing misfires. Can your scanner diagram the o2 voltage signal action on both bank 1 and 2.

Do you see a wave pattern change when accelerating on both banks?

handsomened · Post by **handsomened** » 05 Sep 2009, 13:22

Thank you for your reply, the O2 sensor is a new 5 wire Bosch, I have replaced the plugs but how do I erase the adaptations, will disconnecting the battery do it?