An apparatus and process for controlling an internal combustion engine (C) having an electronic fuel regulation system that provides fuel control for small engines (C) used in garden equipment (B) and small vehicles. An electronic control unit (1) accepts a plurality of signals generated by a plurality of sensors that detect certain environmental characteristics and certain engine operating characteristics. The electronic control unit (1) uses a set of firmware having a number of electronic maps to analyze the plurality of signals to manage operation of a fuel valve (3) and a fuel pump (2) to control the timing and amount of fuel delivered to the cylinder of small internal combustion engine (C) having at least one cylinder.