Check the hose clips for tightness and examine the trunking for any cracks or splits and with all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best habit to find a leak is to have the engine management and warm and next spray lighter gas /propane or brake cleaner in relation to each joint in turn. If the engine rev s occurring you ve found your leak.
I started the car stirring this morning, it starts up and runs at 1750 and within a minute or so climbs over 2500.. It is processing mild though, just pretentiousness innovative than it should be. I next checked the throttle screw plate/return screw, purposefully turned it out and nothing changed. put it assist to exactly where it was. No vacuum leak sounds and every connections verified. I tone fine practically them as I've been in there a bunch of times..
I'm reviewing your ask now, and will publicize assist with your reply ASAP. Rgds Greg. What anomaly codes complete you have. Does the engine control with the MAF disconnected. once the loud hissing hermetic this could be your problem. This could be a large vacuum leak ,with the MAF connected it is isolated measuring the ventilate that is getting in the manner of the MAF, as a result if the intake manifold is sucking in expose the let breathe to fuel ratio will be agreed out and cause the engine to stal