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Continual investigations into the area of alternative fuels are being conducted in an effort to reduce the emission of tomorrow's internal combustion engines. Recent efforts in both the automotive and heavy-duty industry have focused on the evaluation of methanol, ethanol, and reformulated gasoline liquid fuels in this vein. With this advent of light fuel usage in direct injection engines, the criticality of adequately performing fuel injection equipment is amplified. Typical, unassisted, direct injection fuel systems have their roots in diesel equipment. With rare exception, standard diesel injection equipment is not directly applicable to the utilization of light fuels. Via a program sponsored by the U.S. Environmental Protection Agency, a high speed, electronic, methanol compatible direct injection fuel system has been developed and demonstrated. The base pump design utilized for this effort was AMBAC's mechanical Model 100 diesel fuel injection pump.