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Kaz, take another look at the picture of my engine. You circled the banjo bolt several times, above and to the left of the engine hoist hook. That is where the fuel enters the fuel rail. The other end of that hose attaches to your fuel filter and fuel will pour out of it when you switch the ignition on. Disconnect the line there and that is the only place fuel will come out when you turn the ignition to "on".
As mr22ov states, from that point the fuel pressurizes the fuel rail and the excess returns to the gas tank. It passes through the injector rail to the pressure regulator (now we are at the passenger side), down a short piece of rubber hose, then through the hard steel line under the throttle bodies (back to the drivers side) to the rubber hose under the hook right next to the white wire tie.
From the wire tie the fuel continues it's journey to the hard pipe next to the filter,[via rubber hose (connected with the circled once brass fittings on my engine)] then to another rubber hose and connects to a hard pipe leading back to the gas tank.
A bit of practical theory: Pumps don't make pressure, pumps make fluids move, it's the restriction of that movement (flow) that causes pressure.
The fuel pump supplies a given amount of flow to the bottom of the filter and then to the fuel rail at the banjo bolt. It counts on the pressure regulator to restrict that flow and thus maintain a constant pressure in the fuel rail for the injectors to use as required. In order for the injectors to always have enough fuel pressure there must be extra flow capacity in the system. The Toyota engineers built this in by using a higher flow pump than was required and sending the excess back to the tank.
I hope this helps.
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