METHOD OF DETERMINING CONDITION OF FUEL PUMP, CONTROL ARRANGEMENT, FUEL SYSTEM, COMBUSTION ENGINE, AND VEHICLE

A method (100) of determining a condition of a fuel pump (3) of a fuel system (1) of a vehicle (40) is disclosed. The fuel system (1) comprises the fuel pump (3) and a feed pump (5) configured to feed fuel to the fuel pump (3) via a feed conduit (9). The method (100) comprises the steps of operating (110) the feed pump (5) during stand still of the fuel pump (3), obtaining (120) data representative of at least one of a flow and a pressure in the feed conduit (9), and determining (130) a condition of the fuel pump (3) based on the data. The present disclosure further relates to a computer program, a computer-readable medium (200), a control arrangement (21), a fuel system (1), a combustion engine (10), and a vehicle (40) comprising a combustion engine (10).