You can check the VSV by seeing if there is vaccum on the ASV side of the VSV. That means the VSV (1) is opening but the ASV is not. Also too if you have a hand vacuum pump. You can hook it up to the ASV with the bypass hose undone and see if it stops the air back up to the air cleaner.
Sounds like the ACV could be bad.
Sounds like the ACV could be bad.