Fuel is supplied by the fuel pump through the fuel filter to each injector under pressure set by the fuel pressure regulator.
The fuel pressure regulator provides a differential fuel pressure between the fuel and intake manifolds. Excess fuel is returned to the fuel tank through the return pipe.
When the engine is hot, the fuel pressure is increased to improve fuel flow, facilitate restarting and stabilize engine operation at idle speed.
The damper is designed to dampen weak fuel pressure pulsations that occur during operation of the injectors.
Fuel is injected into the intake manifold in accordance with signals from the electronic control unit.
(The original version is published on the website: ToyotaMAN.ru)
Fuel system [Toyota Carina T190]
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