Abstract:
An auxiliary circuit for an electronic fuel control system to facilitate hot starting of the associated engine is disclosed herein. The circuit is responsive to engine temperature above a selected level and is operative to lengthen fuel injection control pulses by an amount calculated by the circuitry to be necessary to purge the injectors and the fuel supply conduits of any vapors forming as a result of excessive engine compartment temperatures. The circuit comprises a first means to generate a signal indicative of the temperature condition and a second means to translate this signal into an appropriate voltage for application to the main computing portion of the electronic fuel control system.