I had the same problem with my 93 Diablo . I am not sure if you did this already or not and if it helps or not but do check the following fuses :-

1- Left Cylinder row injectors fuse
2- Right Cylinder row injectors fuse
3- Left Cylinder row injectors control unit
4- Right Cylinder row injectors control unit
5- Both fuel pump fuses

Apparently these fuses melted with the engine heat so after replacing them the car started fine .