fuel electrical or brain problem

[bret112]

Heres a short version of the troubleshooting i have done and problems

fuel pumps dont run inertia switch is ok I put a hose in 1 gallon can and got siphon to high pressure fuel pump then hooked external battery to fuel pump. pump ran and got pressure in system. turned over engine and still wouldnt start. but when spraying starting fluid in for a few seconds it tried to start but acted like no fuel coming out injectors still only fired on starting fluid.
since when I turn key over the fuel pumps dont run and starting fluid gets it to fire would the problem be the brain and would the brain not let the fuel pumps and the injectors not operate.
I just bought this so I dont know the whole story of what happened to begin with and am working blind.
Also I tested both fuel pumps and replaced the low pressure pump already hi pressure worked fine.
any Ideas will help
thanks

[tekatlarge]

How many Lbs of fuel pressure do you read at the schrader valve?

[Mudhog1977]

Man doesnt that bring up old nightmares my wound up being ecm... Wouldnt let my injectors open