STARTS THEN CUTS OUT .PLENTY OF SPARK.FUEL PRESSURE OK DELIVERY OK .NO INJECTORS FIRING ON CRANKING 1 INJECTOR PULSE ON IGNITION SWITCH ON.CHANGED CAM SENSOR AS FOUND FAULTY,12V AT INJECTORS SO APPEARS TO BE LACKING SWITCHING EARTH ANY IDEAS AS UNABLE TO CHECK E.C.U PLUGS(NO BREAK-OUT BOX)