You should verify fuel delivery beyond a whirring pump. Does the exhaust
smell like gas when you crank the engine? Can you check fuel pressure? Hear
a clicking from the injectors? A calibrated spark tester (KD tools) will
test spark strength; can you check static timing? Or do you have a timing
light? Compression test? Valves opening and closing properly? Surely there
are more troubleshooting steps before condemning the ECU.