So I have about 10k miles on my dart and one day I got in the car and it felt like I had no boost under load. Running all motor. Happened once. Figured is was no biggie. Then yesterday (about 2 weeks later) it happened 3 more times.. 3rd time I was going up hill and felt like I wasnt even going to make it. Then the check engine light came on. Every time I have this problem it also comes packaged with a rough idle. It's intermittent but very noticeable. Taking it to the dealer Friday but I checked the code and it's a p0299 supercharger/turbocharger "A" underboost condition. Has anyone else come across this?