Hey guys, I've recently upgraded my E36 328i to a newer E91 335i but I'm having issues with it
i was just driving around and all of sudden lost cylinders 45&6
I've checked the coils they are all fine, replaced all spark plugs and changed bank #2 O2 Sensor
but no change its still only firing on 12&3 cylinders.
any help on what this might be or is it a common issue?
much appreciated.