This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and fittingly not compensated for and can thin the engine out and can next allow the engine to rev stirring behind not desired causing aggressive running. As its a mechanical fault it tends not to aim on the malformation spacious and you can sometimes hear a hissing noise in imitation of the engine running.
Might moreover be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a quick defect find if you unplug the meter and direct the engine without it. if the engine condition is the thesame next chances are the meter or the attachment to it is faulty. Its as a consequence worth cleaning the MAF sensor wires, as they can get coated in the same way as dirt higher than era which then offsets the reading. Use some contact cleaner or brake cleaner to vaporizer onto the wires to separate the dirt on no account lie alongside the wires when all as they are definitely fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you taking place to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms stirring and is warmed up? oftentimes in engine play-act many factors may cause the same symptom(s)