IIRC that code states that bank 1 is lean. May indicate an O2 sensor issue.
When you replaced the PCV did you make sure it had 2 orings on it, one on the PCV itself and the larger one that rests in the UIM? I think there should also be a sping on top of it as well. You may still have a slight vac. leak throwing the lean code.
The pcv didn't, I'll throw one on and clear the code
I've changed the o2 couple months back
I swapped out the plastic vac lines with rubber back when I did the o2