An interesting side effect of blocking the PCV line off, is that the CEL Error 2015 (intake manifold air flap error) has disappeared. 2015 is meant to indicate that the actuator at one end of the flaps, has lost sync with the encoder at the other. There are reportedly 3 error codes that can throw with the PCV issue, and 1 of these was flagged (bank lean). But I have no idea (and am happy) that my 2015 error code is now gone. Have waited a few days to see if it decided to come back, but so far so good.
Bill