Have to pick up a camper today, 2006 Duramax with 4500 miles on it throwing a "turbo" code according to the dealership. They didnt have time to look at it today and said it would be ok for me to take it to pull a 33foot camper. The diesel tech wasnt even in. And the guy i talked to laughed at me when i said it didnt feel like the turbo was spooling up right when i hit the accellerator around 35MPH.. felt like there was a bunch of lag. Who is the fool here and what should i do!?