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Electric fuel pump choice

Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
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When I asked you if the engine runs better when loosening the gas cap, I don't see where you answered that?
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Friday, January 25th, 2019 AT 3:48 AM
Tiny
DANIYALKZA
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No it doesn't change at all. I have a question is a electric fuel pump flow and pressure change with engine rpm? Or it has a stable flow and pressure no matter low or high rpm?
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Friday, January 25th, 2019 AT 4:36 AM
Tiny
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The fuel pressure is determined by the fuel pressure regulator. If the regulator is on the engine at a fuel rail, etc and has a vacuum hose to it, changes in intake manifold vacuum from changes in engine rpm will cause a slight change in pressure but I believe the flow will remain the same.
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Saturday, January 26th, 2019 AT 12:21 PM

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