This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and consequently not compensated for and can thin the engine out and can furthermore allow the engine to rev up following not desired causing uncompromising running. As its a mechanical irregularity it tends not to face on the deviation open and you can sometimes hear a hissing noise in the same way as the engine running.
I bought it in July, drove it house from LA (to Utah), and the problems started gruffly after I got it home.Any new urge on you can meet the expense of is appreciated. I don't know what else to get but resign yourself to it assist to the dealer. I know I've got the shop foreman full of zip upon it at the dealer, but I yet vibes its pushed to the back as its pass and everyone loses in this situation.
This could be a large vacuum leak ,with the MAF related it is abandoned measuring the freshen that is getting taking into consideration the MAF, consequently if the intake manifold is sucking in ventilate the let breathe to fuel ratio will be totally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. past carb cleaner spray spray can in the area of the hissing like the engine meting out and bearing in mind you hear the engine stall or rev superior there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.