Posted by Richard EndeanRichard Endean
on April 13, 2017, 6:46 pm, in reply to "Mini R56 1.4 N12B14A 2008 - Rich Lambda and fuel trim not correcting #"
I've racked my brains trying to remember the job but we did have one of these where the cat substrate had dropped in its casing - completely shrouding the downstream sensor. All sorts of weird fuel trim errors. Just take out the sensor and shine a torch in the hole - 10 minute job.
