ive had my lupo coming up to 3 years when i first had it, it was on and off like no tomorrow took it the garage sorted for couple of weeks then come on couple days later off and wouldnt see it for couple of months over, then one day it just been on, now been 2years easy take it the garage they get it to switch off then couple days later its back on so... Lambda probe on the second cat, but not having otha problems so jsut got use to having it on now but am going get it sorted so (maybe)