Electronic fuel injection control system for use with an internal combustion engine, having an after-start fuel increasing function

摘要

An electronic fuel injection control system for use with an internal combustion engine is adapted to determine an initial value of fuel increment as a function of the engine temperature at the termination of a starting condition of the engine where the starting switch of the engine is closed and the engine rpm is smaller than a predetermined rpm, e.g. the cranking rpm of the engine, and then gradually decrease the determined initial fuel incremental value in synchronism with generation of a pulse signal which is synchronous with the rotation of the engine.