APPARATUS AND METHOD FOR DIAGNOSING FAILURE OF AIR PRESSURE SENSOR IN VEHICLE

摘要

The present invention relates to an apparatus for diagnosing the failure of an air pressure sensor in a vehicle, including: the air pressure sensor for detecting the air pressure of an intake manifold in the vehicle; an engine rpm detecting unit detecting information on vehicle engine rpm; a throttle valve opening amount detecting unit detecting the throttle valve opening amount of the vehicle; and a control unit determining whether the air pressure sensor or the throttle valve has failed by using a predetermined pressure drop amount threshold of the air pressure sensor according to a throttle valve opening amount and engine rpm.