vs conking out

[Superteam]

Holden commodore ute 5ltr 2000.

Hey i am currently having firing problems. Car will run fine for a few minutes then cut out. am getting fuel up at the rail. Will cut out when driving but will roll start again a couple of times then will just cut out completely. Won't start for ages then. No blown fuses and have just replaced the fuel filter incase of a blockage. Have replaced fuel pump. No change. No fault codes are appearing. Replaced dizzy in case of cas in dizzy gone. Ran beautifully but then cut out again. Have replaced coil a few weeks ago and now i am getting no spark at all after it has been running. I'm absolutely stumped on what it could possibly be? Anyone have any ideas on wat it might be? I've spoken to holden dealership and a few other mechanics as to wat it could be? No one can figure it out. Help please?!?!

[VR38]

If you are SURE it is not fuel related and the spark is good, including connections AND the ignition module then I would be looking at a suspect ECU.