you are injecting gas into the turbo inlet?????? YIKES - suicide mission?
you are using a CNG/LPG mix - at what system pressure? both gases have different storage pressures
you cannot compensate for diesel EFI fuel load control as the injection is not like a petrol EFI, in CDI diesel you are dealing with crazy high pressure - one mistake and you need to have your fingers amputated - or sometimes the engine will do it for free for you.
CDI injectors have a pilot burn and a power burn - this is constantly changed throughout the rpm range and boost pressure. You cannot apply a linear rule to it.