The system includes a fuel source, a pump being operable in a first state to pump {HEAD ~ fuel} from {TAIL ~ the fuel source} to the engine fuel delivery system, and the pump being operable in a second state to pump fuel from the fuel source to the exhaust aftertreatment system, wherein the first state corresponds to a first rotational direction of the pump and the second state corresponds to a second rotational direction of the pump 
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The system includes a fuel source , a pump being operable in a first state to pump { HEAD ~ fuel } from { TAIL ~ the fuel source } to the engine fuel delivery system , and the pump being operable in a second state to pump fuel from the fuel source to the exhaust aftertreatment system , wherein the first state corresponds to a first rotational direction of the pump and the second state corresponds to a second rotational direction of the pump
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH