| 摘要 |
PURPOSE: A method for correcting the deflection of injection air flow of a gasoline engine is provided to improve the stability of an engine by correcting the deflection of the opening degree due to the error of a throttle body and the assembling deflection of a throttle body cable. CONSTITUTION: A method for correcting the deflection of injection air flow of a gasoline engine comprises the steps of diagnosing the trouble of an air flow sensor(AFS,S1), sensing the idle state of a vehicle and the opening degree of a throttle position sensor(TPS,S2), comparing the correlation of an accelerator position sensor opening and the throttle position sensor opening to a map value when the vehicle is not in the idle state and the throttle position sensor opening is not zero(S3), deciding if the output voltage value difference between the throttle position sensor and the accelerator position sensor is out of a threshold range(S4), and driving an idle speed control valve if the output voltage value difference is out of the threshold range(S5).
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