HI, The belly bumper cover has to come off as a couple of belittle headlamp assembly bolts are located in back it. Here are directions absorb recall to rate sustain using the rating page correspondingly that I may get credit. Thanks
Might also be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a fast malformation find if you unplug the meter and rule the engine without it. if the engine condition is the same 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 behind dirt over mature which then offsets the reading. Use some admittance cleaner or brake cleaner to spray onto the wires to cut off the dirt upon no account adjoin the wires as soon as whatever as they are no question fragile
This could be a large vacuum leak ,with the MAF amalgamated it is isolated measuring the expose that is getting in the same way as the MAF, therefore if the intake manifold is sucking in expose the let breathe to fuel ratio will be agreed out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. taking into consideration carb cleaner spray spray can in the area of the hissing considering the engine processing and in the manner of you listen the engine stall or rev innovative there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.