Leganza does not start after engine conversion

Hello I have planted an Opel engine x20xev in my leganza (only the fuselage). Now I have the problem that it does not start. I noticed that the benzien pump does not work. On the fuse is no electricity!! Does someone know what I can have done wrong ?? At the immobilizer it is not, the display goes out when I turn the key and the alarm system goes too. I really appreciate a help too Sbox30