Fuel Management
Seeing engine revolutions the EMS2000 provides a ground signal to the fuel pump relay. The fuel pump relay is on a fused circuit further protected by the inertia switch(<9/2002).
The fuel pump, mounted in the swirl pot of the left side of the blow molded saddle type fuel tank, picks up fuel through the life time fuel filter and passes it to the right side tank. In the right tank the fuel is passed through a pressure regulator where a fuel pressure of 3.5 bar is maintained. Excess fuel is returned from the right tank to the left tank through a syphon jet that also transfers fuel to the left tank.
Fuel at 3.5 bar is sent to the engine mounted fuel rail assembly. The fuel rail contains the pressure damper to smooth out fluctuations in fuel pressure during high load situations.
Based on the volume and density of the air, the engine load, engine rpm and temperature, the EMS2000 calculates the correct volume of fuel for injection.
Monitoring the crankshaft and camshaft sensors the EMS2000 decides upon the proper timing of the fully sequential injection. Failure of the camshaft sensor causes the EMS2000 to inject fuel on a semi-sequential basis (injectors are triggered every engine revolution). Failure of the crankshaft sensor causes cancellation of fuel injection.