Re: 156 motor control system failure
Yes after suffering for on/off problems for over 9 months, I just ignore it now. It was on perm for 3 months this year then went off for weeks at a time. The car feels no different so figure if a bad connection to the lamba then the car would still compensate and feel different, so must be somewhere else.
If the car can pull from low to max revs in any gear 'keanly', then its certainly not a duff sensor.
My view is that if it does not affect perf/fuel consumption, don't worry about it
There's nothing in the dark that isn't there in the light ..... except fear