Hello, I have repaired higher than 30000 vehicles in my career and I compulsion to question you questions in the past I am not there in person to hoard facts, data, or to exam your vehicle. I may ask you to affect testing in my stead. If examination is needed and you would rather not put on an act testing, I can allow my best advice, Fuel pressure?
I bought it in July, drove it house from LA (to Utah), and the problems started rapidly after I got it home.Any supplementary help you can meet the expense of is appreciated. I don't know what else to attain but endure it back to the dealer. I know I've got the shop foreman in action on it at the dealer, but I yet air its pushed to the help as its pass and everyone loses in this situation.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you up to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms stirring and is warmed up? oftentimes in engine ham it up many factors may cause the same symptom(s)