Hello, I have repaired higher than 30000 vehicles in my career and I craving to question you questions in the past I am not there in person to accrue facts, data, or to test your vehicle. I may question you to work examination in my stead. If study is needed and you would rather not comport yourself testing, I can allow my best advice, Fuel pressure?
I bought it in July, drove it home from LA (to Utah), and the problems started rudely after I got it home.Any supplementary put up to you can meet the expense of is appreciated. I don't know what else to do but acknowledge it back to the dealer. I know I've got the shop foreman working upon it at the dealer, but I still mood its pushed to the support as its archaic and everyone loses in this situation.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you occurring to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms in the works and is warmed up? oftentimes in engine action many factors may cause the similar symptom(s)