Why does my bronco want to stall out after it warms up an not want to start? on 1990 Ford Bronco

I have changed the icm an feul pump relay an still does the same thing

Asked by for the 1990 Ford Bronco
when this happens are you loosing spark and fuel pressure? or just one
The fuel pump relay starts tripping alot
ck circuit pwr and ground
Ok how would I do that ane tha.ks for the advise
look on www.alldata.com see if that helps