1989 f-250 460 fuel injected replaced inline electric fuel pump fuel filter fuel regulator fuel pumps are pumping but truck acts like its starveing for fuel as soon as Istep on the peddle need help
Check your running fuel pump pressure. If (as I suspect) it's too low, first try changing your fuel filter. After changing the filter, recheck the running fuel pump pressure. If still low, check you fuel pump pressure regulator. If OK, you may need a new fuel pump.
Also probably would be a good idea to replace you air filter.
Good luck!
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