Re: 1987 2.9 won't stay running
This reply might be too late?, you say you have fuel, but you need around 43 psi at the fuel rail to get the injectors to operate. How about the frame mounted fuel pump? You put in a new tank and a new pump in the tank, but it is the low pressure version of the two. You need the hi pressure frame mounted pump to be working also.
There is also two fuel filters in case you haven't picked up on that in other threads.
If you solved this?, others might like to know how it went.