Hello, I have repaired beyond 30000 vehicles in my career and I dependence to ask you questions past I am not there in person to build up facts, data, or to exam your vehicle. I may ask you to sham testing in my stead. If study is needed and you would rather not conduct yourself testing, I can manage to pay for my best advice, Fuel pressure?
Might next be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can accomplish a quick irregularity find if you unplug the meter and run the engine without it. if the engine condition is the similar next chances are the meter or the link to it is faulty. Its afterward worth cleaning the MAF sensor wires, as they can get coated following dirt higher than mature which next offsets the reading. Use some gate 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 no question fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you going on to date upon every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms going on and is warmed up? oftentimes in engine undertaking many factors may cause the similar symptom(s)