Blood from the stone

Avid listener for years Gotta 92 taurus wagon 200K, just changed out radiator, car did start normally fuel pump reached pressure and stopped as normal and fan was normal. Shortly after condition changed - key on - fan and fuel pump run continuously, car cranks but won’t start, computer code 111 and 542, replaced integrated relay control module, no effect. No obvious broken wires, all connections seem intact, fuel disconnect switch ok. Help –