1Z/AHU EGR vent drain
Lug_Nut

1Z/AHU EGR vent drain

Worn EGR shaft seal can allow boost pressure to blow-by. Oil from the CCV in the boost air dribbles down the vent.
DON'T BLOCK THE VENT. It's needed to assure pressure differential to atmosphere.
Just add a drain to collect the oil weep
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