Hi moka 1.4 Tecline 2016. Car has only 10000 miles over the last few months I have been losing Acceleration for no reason at all, but it does come back after a minute or so or if you pull over and restart it. Vauxhall have had it in twice on their diognostic machine but say they can't find anything showing up. There is definitely some sort of fault but I am at a loss what to do next. Any help please.