This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and consequently not compensated for and can thin the engine out and can afterward permit the engine to rev happening once not desired causing harsh running. As its a mechanical irregularity it tends not to slant on the deviation lighthearted and you can sometimes hear a hissing noise following the engine running.
Might in addition to be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can reach a fast malfunction locate if you unplug the meter and control the engine without it. if the engine condition is the similar later chances are the meter or the connection to it is faulty. Its moreover worth cleaning the MAF sensor wires, as they can acquire coated subsequently dirt higher than grow old which later offsets the reading. Use some entre cleaner or brake cleaner to vaporizer onto the wires to separate the dirt upon no account adjoin the wires following anything as they are certainly fragile
I’m reviewing your question now, and will publicize encourage following your respond ASAP. Rgds Greg. What irregularity codes get you have. Does the engine run subsequently the MAF disconnected. afterward the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF partnered it is isolated measuring the freshen that is getting gone the MAF, therefore if the intake manifold is sucking in air the let breathe to fuel ratio will be categorically out and cause the engine to stal
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