94 pathfinder

[mikedarija]

:help my 94 nissan pathfinder will not stay runing, it was fixed once about a mounth ago bye replaceing the fuel pump , it ran for 3 weeks,i took it to a garage they found that the fuel pump relay was bad ,it ran for 2 more weeks and died i went out and got a new relay it started up and ran for twenty min and died agian what would make the relays burn out or is that the probem