Now you might think that spraying lighter gas approaching a warm engine isnt wise, however the flash /ignition narrowing of gas is very nearly 400C for that reason you habit a naked flare or spark to set it off and Ive used this method for many years without incident. bill your exaggeration through each possible joint one at a grow old and you should find it. I use a slightly flattened piece of brake pipe and some rubber hose from the can of lighter gas to pay for a spraying wand and permit a talk to blast of gas into each area, especially those difficult to reach taking into account large implements.
Might then be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can get a fast idiosyncrasy locate if you unplug the meter and direct the engine without it. if the engine condition is the same after that chances are the meter or the link to it is faulty. Its plus worth cleaning the MAF sensor wires, as they can acquire coated behind dirt beyond times which after that offsets the reading. Use some log on cleaner or brake cleaner to spray can onto the wires to separate the dirt upon no account adjoin the wires bearing in mind whatever as they are entirely fragile
I'm reviewing your question now, and will declare assist similar to your reply ASAP. Rgds Greg. What fault codes pull off you have. Does the engine manage similar to the MAF disconnected. afterward the noisy hissing hermetically sealed this could be your problem. This could be a large vacuum leak ,with the MAF partnered it is and no-one else measuring the air that is getting when the MAF, appropriately if the intake manifold is sucking in expose the freshen to fuel ratio will be enormously out and cause the engine to stal