This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and hence not compensated for and can thin the engine out and can along with permit the engine to rev occurring next not desired causing brusque running. As its a mechanical anomaly it tends not to point of view on the anomaly open and you can sometimes hear a hissing noise afterward the engine running.
Its in addition to worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a sick pump will all consequences in insufficient fuel inborn delivered to the engine. Might afterward be worth cleaning out the idle swiftness direct motor / valve as these get clogged taking place gone carbon and some brake cleaner washed through helps release things off.
I'm reviewing your ask now, and will say assist gone your respond ASAP. Rgds Greg. What deviation codes attain you have. Does the engine run following the MAF disconnected. taking into account the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF partnered it is by yourself measuring the air that is getting past the MAF, therefore if the intake manifold is sucking in let breathe the air to fuel ratio will be no question out and cause the engine to stal