That’s the idea of the new system no return line to send extra heat energy to the tank.Īs an additional benefit, a returnless system, having one less fuel line, reduces the chances of a fuel leak. Naturally, the heated fuel would vaporize in the tank at a higher rate than if it were kept cool. With the older return type fuel system, the fuel would be pumped up into a hot fuel rail overtop of a hot engine, and the fuel would return to the tank full of heat energy. Well, actually, the main idea is to reduce fuel vaporization back in the fuel tank. Now, we need to make that all fancy by adding a new controller, adding a new sensor and speeding up and slowing down the fuel pump to control pressure.What sense does that make? Are they just trying to sell new parts and tools or what?
A simple electric pump pushing fuel up to the engine, with its pressure being controlled by a little valve, and returning the unused fuel to the tank was not good enough.
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