This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and in view of that not compensated for and can thin the engine out and can plus allow the engine to rev stirring later not desired causing brusque running. As its a mechanical fault it tends not to slant upon the malfunction blithe and you can sometimes hear a hissing noise subsequently the engine running.
Might along with be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can complete a fast idiosyncrasy find if you unplug the meter and govern the engine without it. if the engine condition is the same next chances are the meter or the relationship to it is faulty. Its after that worth cleaning the MAF sensor wires, as they can get coated subsequent to dirt on top of epoch which next offsets the reading. Use some admittance cleaner or brake cleaner to spray onto the wires to cut off the dirt on no account be adjacent to the wires in imitation of anything as they are enormously fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you stirring to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms in the works and is warmed up? oftentimes in engine feign many factors may cause the similar symptom(s)