Hi Jon,

CTS reads 0.5v at 80 degrees so ok, ref cranking speed I pulled the cranking revs down (crudely!) by dragging the clutch slightly in gear live data displayed between 170 / 200 rpm approx and still fired up and started ok.

It has never done it with me since testing pressures without fuel filter or since after fitting new filter I am going to let him try it for a few days...

Thanks

Rob