It started a few days back I started the car and let it warm up. 15 min. later I came out of the house and the car was not running. I started it and it just died. started again and it died. tried to hold it at a high idle but it just died. later that day it started and ran for 15 plus min. Saturday it started but later would not enen start hour later it started and ran. two plus hours later started but did not stay running started died started died. then would not start. I changed fuel filter not it droped the tank and changed the fuel pump and pump filter still did not start. this is where I get lost fuel injection! does it take a few tries starting it or does it need to be primed? I dont know could it be another problem I am overlooking? check for spark and their is good spark from the coil. ok went back to the car and it started then ran a few min. and died. would not start again check spark no spark checked voltage at coil 13 plus volts replaced coil with new and still no spark. ????????? help help help

any help is needed. thanks for reading and thanks for your help if you have any.
Brad