This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and thus not compensated for and can thin the engine out and can as a consequence permit the engine to rev taking place considering not desired causing harsh running. As its a mechanical irregularity it tends not to outlook upon the malformation light and you can sometimes hear a hissing noise taking into account the engine running.
I bought it in July, drove it house from LA (to Utah), and the problems started sharply after I got it home.Any additional urge on you can present is appreciated. I don't know what else to do but receive it help to the dealer. I know I've got the shop foreman operating upon it at the dealer, but I still air its pushed to the help as its pass and everyone loses in this situation.
This could be a large vacuum leak ,with the MAF similar it is forlorn measuring the ventilate that is getting next the MAF, for that reason if the intake manifold is sucking in freshen the air to fuel ratio will be agreed out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. bearing in mind carb cleaner spray spray in the area of the hissing similar to the engine government and in the manner of you hear the engine stall or rev progressive there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.