| 摘要 |
PURPOSE:To prevent high temperature startability from its deterioration in such a way that a closing valve which is provided on a return path is closed in order to force fuel in, under the condition to produce vapor lock. CONSTITUTION:When a starter switch 15 is turned ON, a relay 16 is closed. While it is involved in high temperature starting, a temperature sensor 18 is also turned ON. When alcoholic concentration in fuel which passes through a fuel path 6 is high, since electric current value which has output from an alcoholic concentration sensor 11 through a converter 13 has grown to be large, a relay is also turned ON. In result, a closing valve 10 which is provided on a return path 7 is closed and given impetus, and fuel pressure at the time of cranking is increased. Fuel which has been fed out of a fuel pump is forcibly fed into a fuel injection valve, so that deterioration of high temperature startability in the wake of vapor lock occurrence can be prevented. |
