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This could be an airleak after the airflow meter, any expose 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 permit the engine to rev up in the same way as not desired causing harsh running. As its a mechanical irregularity it tends not to incline on the defect spacious and you can sometimes hear a hissing noise afterward the engine running.
I bought it in July, drove it house from LA (to Utah), and the problems started shortly after I got it home.Any additional encourage you can pay for is appreciated. I don't know what else to attain but take it put up to to the dealer. I know I've got the shop foreman practicing on it at the dealer, but I yet feel its pushed to the back as its outmoded and everyone loses in this situation.
This could be a large vacuum leak ,with the MAF amalgamated it is and no-one else measuring the air that is getting taking into consideration the MAF, thus if the intake manifold is sucking in ventilate the expose 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. in imitation of carb cleaner spray can spray can in the area of the hissing subsequent to the engine running and in the same way as you hear the engine stall or rev future there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.