help truck fires then dies imediately

[jgbike1]

pulled turbo,ip,and injectors from rnning 94 truck,put on 90 7.3 idi no w truck fires but dies imediately.start again it does same thing longest it has run is about 5 seconds.thanks for any help

 

[93f250invt]

i had the same problem when my sending unit in the tank broke i would also check the lift pump

 

[93f250invt]

could also be air trapped in ip or injectors

 

[jgbike1]

thanks guys,apparently i had air somewhere.after a week of bleeding and cranking its now running like a champ