2015 non pp. I just finished a 5000 km trek across the country and during the trip she started with the whole hesitation thing under light load, I've since sucked out the intercooler and cleaned the airflow sensors. But the car is still doing it. It seems to come and go at random... fuel pump? Computer issues? as I am at a very different altitude than home? I also have recently put in new iridium Ngk's and gapped them to 32. Any help would be great thanks.