My sis runs a Rover 220 Sdi. The oil light 'keeps flickering when its warm'. So Brother in law puts it in a garage and they change the pressure sensor, still does it so they change it again....still the same. AFAIK the actual oil pressure aint been measured yet, how easy is it to do.
Also are there any known problems with this engine which nay cause the above syptoms. Oil light goes out after start up and only comes on when oil is warm. I'm thinking either blocked strainer or knackered oil pump??
Dom J