Fuel, Pulse, ECM signal to fumps and tbi solinoid

Truck was running, left it sit for 2 years. No fuel at tbi, changed pumps no fuel at tbi, pumps do not come on checked system grounds, engine will run by pouring gas down tbi. Changed ecm, same condition. All other sytems working fine. Check engine light, shows troubel codes 12, 13, 14, 15. Checked fueses, wierring, every thing, even put carb on and it ran. Changed oil pressure switch, and coolant temp switch, im thinking power at relay but no signal going to pump and tbi soliniod. Relay good.