ok heres my problem i changed my fuel pumped and my fuel relay but my fuel pump still wont turn on when i turn the key plz help

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1988 5.0, exhaust, pulleys, trick flow intake, 75mm throttle body

 

i know on my 95 in the trunk behind the driver side carpeting theres a fuel pump reset button. try that maybe

 

I was going to say the same thing but about my 87 behind a ruber plug in the back on the drivers side .

 

Try the inertia switch in the back. Could be the ignition switch under the column. That isnt very uncommon either.

 

you replaced the relay under seat ? or the inertia switch in the trunk ?

if you didn't do the one in the trunk....check the harness connection, pull it off....spray some brake cleaner (tuner cleaner if you have it)