| 摘要 |
An ECU executes ( 300 ) a program including a step (S 202 ) of opening an electromagnetic ASV ( 232 ) while a vacuum pressure ASV ( 1 ) and a vacuum pressure ASV ( 2 ) are controlled so as to be closed, and an air pump ( 200 ) is controlled so as to be stopped in a case where an air amount GA that is an amount of air introduced into an engine ( 100 ) is equal to or larger than a predetermined air amount GA ( 0 ), and a coolant temperature TW at the starting time of the engine is equal to or higher than a predetermined coolant temperature TW ( 0 ) ("YES" in step S 200 ); a step (S 204 ) of detecting a pressure; a step (S 206 ) of closing the electromagnetic ASV; and a step (S 402 ) of determining that failure has occurred in at least one of the vacuum pressure ASV ( 1 ) and the vacuum pressure ASV ( 2 ), that is, one of the vacuum pressure ASV ( 1 ) and the vacuum pressure ASV ( 2 ) remains in an opened state and cannot be closed when there is a pulsation of the pressure that is detected while the electromagnetic ASV is opened ("YES" in step S 400 ). |
