maybe buying a focus zetec 1.8 16v xreg this weekend which has this same cutting out problem , its been taken to a electrics specialist garage today which showed no problems so they have removed a code off computer on car that they say should help , otherwise they suggest replacing the onboard comp thing at a cost of 250 quid ? so hoping it dosent need it ...any thoughts ????? i have also seen posts saying cleaning out the engine idle unit also helps ????