Sorry, first time using site,it cut out going downhill after driving about 5mins.Engine cut out and immediately pulled into carpark.Engine will not fire up but it is turning over.Checked cam belt this is ok ,checked spark plugs ok and spark coming to each one from coil pack,checked fuel delivery and this is ok.The oil level was low on dip stick,took over 2 litres of oil to get to min level.I did not get an oil indication low from the dash so matbe this pressure sw is faulty but would that stop it starting?Is there a low level safety cut out to save engine?Is there some kind of electronic device that does the timing ?Thanks for looking at this and hope you might have some ideas.