Quote:
Originally Posted by sendler
Those cars have the regulator right in the fuel filter so there is a return in the system but you don't see it happening because it is right in or at the tank. This FI conversion kit definitely needs a return hose which will be flowing quite a bit of volume. Maybe 1 liter/ minute.
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With a returnless fuel system the fuel regulation is done at the pump, inside the tank. The fuel never leaves and then reenters the tank. There may be a system with return from a fuel filter/pressure regulator but it would have to be from the Germans or Sweedes and I have yet to see it.
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Always get a second opinion because most of these people are makin' this stuff up
