| 摘要 |
<p>An internal combustion engine includes a feedback control system for effecting feedback control in order to enrich the air-fuel ratio during acceleration. An identifying device is provided for identifying the fuel in use by the internal combustion engine, and includes a control arrangement which identifies that the fuel in use is heavy gravity fuel when feedback signals sequentially produced by the feedback control system indicate that the air-fuel ratio has remained lean for at least a predetermined time after acceleration has been attempted.</p> |
