That sounds pretty similar to how mine went, I went through everything and could not find anything to make it go like that. I then booked it into the dealer who gave it me back a day later, they could not find anything. I still do not know to this day what it was that caused it. Mine would just die and then come back again at the time, when it was at the side of the road it ran fine and revved fine, but put it in first gear and bingo it would just splutter and and jerk and even more so when you changed up.
