If the CAS(immobilizer) is recognizing the key it is activating the starter,that part is good.If there is mismatch between the DDE(diesel engine control module)and CAS you will ha code in the DDE like"EWS manipulation".From the codes i see I exclude immobilizer problem.My guess is problem with one of the sensors,power supply for the injectors or mechanical problem.
You can disconnect one of the injectors and connect LED or test light to checl:a)power supply with ignition ON,and b) if you have a signal when cranking(the light should blink briefly every 1-2 seconds).Then open a menu with actual values of the DDE,same as where you found the fuel pressure values and look for engine speed when cranking.