Dual Tank (6.5L)
The fuel balance pump module monitors the signal circuit of the fuel level sensor in order to determine the fuel level. When the fuel tank is full the fuel level sensor resistance is high. When the fuel tank is empty the fuel level sensor resistance is low. The fuel balance pump module calculates the total remaining fuel percentage in the fuel tank based on the fuel level sensor resistance and the fuel balance pump module 5 volt reference. The fuel balance pump module averages the resistance of the primary and the secondary fuel level sensors in order to produce an equal resistance value that reflects the average level of both fuel tanks. The fuel balance pump module equalizes the fuel levels in both tanks while supplying fuel to the engine from the primary fuel tank. The IPC receives total amount of fuel remaining information from the fuel balance pump module via the fuel level sensor signal circuit.