Ecu will earth out the brown wires for injectors when cranking. It will start without speed sensor, mine did.
If you put an led across the injector plug and crank it will show if the injectors are pulsing. Can blow drivers on ecu tho i believe so be careful.
If you have a multi-meter I'd be checking the continuety and polarity of the wiring from pins 1 & 3 of the edis module to pins 14 & 34 of the ecu.
Saqme again with 5 & 6 of edis to 1 & 2 of crank sensor