Abstract: An efficient auxiliary engine combustion system is capable of controlling the emission of exhausted carbon and other exhaust matter by improving the combustion efficiency of engines by installing the system to the air intake pipe or fuel feeding pipe or both. The auxiliary engine combustion system has a belt shaped cover in which a first metal plate, rubber plate, second metal plate, capacitor and third copper plate are therein aligned and contained. Between the first metal copper plate and second metal plate lies a capacitor. A first terminal of the capacitor is affixed to the first metal plate. A second terminal is affixed to second metal plate. Static electricity charges the capacitor to provide a positive charge to neutralize and decompose concentrations of negative ions entrained in the incoming air or fuel flow.