This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and fittingly not compensated for and can thin the engine out and can furthermore permit the engine to rev taking place with not desired causing unfriendly running. As its a mechanical malfunction it tends not to tilt upon the aberration well-ventilated and you can sometimes listen a hissing noise once the engine running.
Might as a consequence be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can attain a quick malfunction locate if you unplug the meter and govern the engine without it. if the engine condition is the thesame after that chances are the meter or the association to it is faulty. Its after that worth cleaning the MAF sensor wires, as they can get coated like dirt over grow old which next offsets the reading. Use some door cleaner or brake cleaner to spray can onto the wires to remove the dirt upon no account touch the wires past all as they are agreed fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you up 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 happening and is warmed up? oftentimes in engine take effect many factors may cause the thesame symptom(s)