I am trying to help the widow of my recently deceased friend who is having problems with her husband’s cherished 1994 1.3spi Cooper Monte Carlo. Until last week the car would start up very easily, and run well. Now it turns over but won’t start. After deactivating the immobiliser, the ignition lights up normally but there is no noise from the fuel pump. The engine cranks over very healthily, but won’t fire up. It seems clear that the fuel pump is not running and therefore no fuel is reaching the injectors. I have carried out some electrical tests, and no power is reaching the fuel pump when the ignition is on. There is no power at the 10 amp inline fuse supplying the pump so It appears that the fuel pump relay in the YWB10022 fuse module is not operating. I removed and tested this module thinking that the pump relay was faulty, but all 4 relays operate correctly, so the fault is not in the module. Since the 12volt supply from the ignition switch is reaching the relay module it looks as though the fuel pump relay coil is not being energised by the ECU.
I am now at a loss to know where to look next, and I would very much appreciate any suggestions. There is some urgency because my friend’s widow is moving house following her husband’s death and the car will have to be moved.
Thanks in anticipation