There is, according to James, a living faith and a dead faith. Actually, I would say there are many dead faiths. It all depends on the object of your faith. If it is truly faith in Jesus Christ, that is all you need to be saved, because His work on the Cross was entirely sufficient to save. He transforms you from death to life. The mark of the living is activity. The mark of the dead is inactivity. If your post-confession life is marked by disinterest and inertia, then a serious examination of your faith is in order.
If by "faith alone" you mean a faith which produces no works, I would say that that kind of faith is a dead faith, unable to save.
If by "faith alone" you mean the faith which transforms you, that is a living faith which, by its very nature, results in works.