well welcome to , before cranking it on a cold start, open the hood and look at the high pressure oil pump and go to the resovouir, take off the little cap and see how much oil is in there, it should be i belive 1 inch from the top, if not fill it, you may have a leaky ring on the IPR wish is down lower onthe pump or res somewhere, that may be the culpret here. Some one else may chime in and confirm my claime.