This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and as a result not compensated for and can thin the engine out and can also permit the engine to rev taking place in imitation of not desired causing scratchy running. As its a mechanical irregularity it tends not to viewpoint on the aberration buoyant and you can sometimes listen a hissing noise next the engine running.
I bought it in July, drove it home from LA (to Utah), and the problems started unexpectedly after I got it home.Any further incite you can allow is appreciated. I don't know what else to attain but agree to it help to the dealer. I know I've got the shop foreman functional upon it at the dealer, but I nevertheless vibes its pushed to the incite as its obsolete and everyone loses in this situation.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you taking place 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 stirring and is warmed up? oftentimes in engine work many factors may cause the same symptom(s)