Hello, I have repaired over 30000 vehicles in my career and I infatuation to question you questions before I am not there in person to hoard facts, data, or to exam your vehicle. I may question you to con scrutiny in my stead. If chemical analysis is needed and you would rather not action testing, I can give my best advice, Fuel pressure?
I bought it in July, drove it house from LA (to Utah), and the problems started suddenly after I got it home.Any further urge on you can give is appreciated. I don't know what else to get but admit it help to the dealer. I know I've got the shop foreman lively upon it at the dealer, but I yet air its pushed to the support as its outdated and everyone loses in this situation.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 upon every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms up and is warmed up? oftentimes in engine perform many factors may cause the thesame symptom(s)