I have a 1998 mercury villager 6cyl.It ran great and the next day it knocked off on 1998 Mercury Villager

I have checked for fire with a spark tester a changed the fuel filter. I checked to see if fuel came out of the lines and it does. please help!!!!

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check fuel pressure there might not be enough pressure to start the engine. If it has good fuel pressure then I would check injector pulse and do a compression test.!!!