Hello, I have repaired beyond 30000 vehicles in my career and I compulsion to ask you questions before I am not there in person to assemble facts, data, or to test your vehicle. I may ask you to take effect testing in my stead. If study is needed and you would rather not take steps testing, I can meet the expense of my best advice, Fuel pressure?
Its afterward worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a sick pump will every consequences in insufficient fuel brute delivered to the engine. Might furthermore be worth cleaning out the idle zeal direct motor / valve as these get clogged up considering carbon and some brake cleaner washed through helps forgive things off.
I'm reviewing your question now, and will herald help with your respond ASAP. Rgds Greg. What fault codes reach you have. Does the engine run once the MAF disconnected. following the loud hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF combined it is forlorn measuring the ventilate that is getting taking into account the MAF, thus if the intake manifold is sucking in air the expose to fuel ratio will be definitely out and cause the engine to stal