Hello, I have repaired more than 30000 vehicles in my career and I craving to ask you questions previously I am not there in person to hoard facts, data, or to exam your vehicle. I may ask you to enactment breakdown in my stead. If assay is needed and you would rather not feign testing, I can meet the expense of my best advice, Fuel pressure?
Might as a consequence be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast malfunction find if you unplug the meter and run the engine without it. if the engine condition is the same next chances are the meter or the membership to it is faulty. Its then worth cleaning the MAF sensor wires, as they can acquire coated bearing in mind dirt exceeding time which later offsets the reading. Use some entry cleaner or brake cleaner to spray onto the wires to surgically remove the dirt upon no account touch the wires similar to anything as they are certainly fragile
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you stirring to date on every 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 bill many factors may cause the thesame symptom(s)