I love these posts. , have had same issue for a year. Took it to a Porsche shop they never solved it and charged me all kinds of fees and send me home. I have changed fuel injector seals, spark plugs, valve adjustment, cleaned WUR and all ejectors, replaced fuel filter. And nada
So reading this thread with so much knowledgable people inputting things to try is wonderful.
Keep it going guys. More of us are suffering from the same 911 ailments than you know
