According to another aspect of the invention, it is proposed in association with the engine control apparatus described above to provide {TAIL ~ a window setting means} for causing the misfiring detecting circuit to determine misfire only when {HEAD ~ an ignition coil} for the at least one engine cylinder is in a non energized state 
According to another aspect of the invention , it is proposed in association with the engine control apparatus described above to provide { TAIL ~ a window setting means } for causing the misfiring detecting circuit to determine misfire only when { HEAD ~ an ignition coil } for the at least one engine cylinder is in a non energized state
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