Losing power

I can drive my 4Runner down the about 10 miles runs fine on the way back it just dies. It will start right back up. But then it dies and and gets worst to the point it will start for a second then just die. Help plz

 

seems to be a fueling or ignition issue, does it sputter or just cut out?

 

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Just cuts out. I know it's not a the fuel pump it's hooked up by a toggle switch.

 

it reminds me of a dirty fuel filter that clogs slowly, or a restriction that limits the fuel flow like a pinched fuel line. When that appens can you check for fuel pressure at the engine?