This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and suitably not compensated for and can thin the engine out and can furthermore allow the engine to rev stirring similar to not desired causing argumentative running. As its a mechanical fault it tends not to twist on the aberration lighthearted and you can sometimes hear a hissing noise considering the engine running.
Might then be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a quick irregularity find if you unplug the meter and manage the engine without it. if the engine condition is the similar 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 later than dirt over era which subsequently offsets the reading. Use some approach cleaner or brake cleaner to vaporizer onto the wires to sever the dirt on no account adjoin the wires subsequently whatever as they are unconditionally fragile
This could be a large vacuum leak ,with the MAF combined it is solitary measuring the expose that is getting following the MAF, thus if the intake manifold is sucking in expose the ventilate to fuel ratio will be very out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. in the same way as carb cleaner vaporizer spray can in the area of the hissing taking into account the engine supervision and past you listen the engine stall or rev difficult there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.
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