On and off P0299 low boost code on a 2013 Explorer 2.0 ecoboost 110000 miles regular oil chains with full synthetic 5-30w. No history of driveline faults The boost does seem low but diagnostic readings appear to show 8psi boost is being achieved. There is a rattle... sounds like a heat shield but inspection of Cat Back found nothing. Oil level is stable no unusual consumption or leaks What am I missing? Could it be a timing chain? Do I need to get a turbo? Are there any troubleshooting steps I've missed? Anyone else come accrosss this? It's my ride, and I want to keep it.