This could be an airleak after the airflow meter, any air dragged in here isn t seen by the ECU and consequently not compensated for and can thin the engine out and can as well as allow the engine to rev in the works bearing in mind not desired causing aggressive running. As its a mechanical irregularity it tends not to direction upon the malformation blithe and you can sometimes hear a hissing noise subsequently the engine running.
I bought it in July, drove it home from LA (to Utah), and the problems started brusquely after I got it home.Any other urge on you can allow is appreciated. I don't know what else to pull off but believe it assist to the dealer. I know I've got the shop foreman dynamic on it at the dealer, but I still tone its pushed to the back as its out of date and everyone loses in this situation.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you going on 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 occurring and is warmed up? oftentimes in engine law many factors may cause the same symptom(s)