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This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and correspondingly not compensated for and can lean the engine out and can as a consequence permit the engine to rev occurring when not desired causing argumentative running. As its a mechanical anomaly it tends not to aim upon the aberration fresh and you can sometimes hear a hissing noise like the engine running.
Might after that be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a fast irregularity locate if you unplug the meter and manage the engine without it. if the engine condition is the same then chances are the meter or the attachment to it is faulty. Its along with worth cleaning the MAF sensor wires, as they can get coated in the manner of dirt over epoch which next offsets the reading. Use some retrieve cleaner or brake cleaner to spray onto the wires to separate the dirt upon no account be next to the wires in the manner of anything as they are completely fragile
I'm reviewing your ask now, and will broadcast urge on once your reply ASAP. Rgds Greg. What oddity codes accomplish you have. Does the engine manage next the MAF disconnected. taking into account the noisy hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF associated it is deserted measuring the freshen that is getting considering the MAF, appropriately if the intake manifold is sucking in ventilate the air to fuel ratio will be unconditionally out and cause the engine to stal