We have a 1998 S reg hijet and we are having problems with the oil light. The oil light keeps flickering on and off and sometimes it stays on. Twice all the engine warning lights ave come on and the engine has cut out. We have had a garage look at it and they think it might be the oil pump but there not sure! Its had 2 oilchanges in the past 6 mounths and the light doesnt come on all the time!! Does anyone have any ideas please help.