Please can anyone hep with running problems im having with my series 2, I brought it as a none runner and it had been sat for about 18 months, replaced the fuel metering unit and she fired up but she is still running rough, if I drive her like she is then I can only rev to about 3000 but if I unplug the metering unit then she runs alot better but not on hi revs, I have changed metering unit with others but that hasn't helped.