Check the hose clips for tightness and examine the trunking for any cracks or splits and along with every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best mannerism to locate a leak is to have the engine running and hot and then spray can lighter gas /propane or brake cleaner just about each joint in turn. If the engine rev s going on you ve found your leak.
I started the car happening this morning, it starts taking place and runs at 1750 and within a minute or so climbs on top of 2500.. It is presidency smooth though, just showing off progressive than it should be. I plus checked the throttle screw plate/return screw, deliberately turned it out and nothing changed. put it put up to to exactly where it was. No vacuum leak sounds and all friends verified. I vibes fine very nearly them as I've been in there a bunch of times..
I'm reviewing your ask now, and will make known back considering your answer ASAP. Rgds Greg. What anomaly codes get you have. Does the engine govern considering the MAF disconnected. subsequent to the loud hissing hermetic this could be your problem. This could be a large vacuum leak ,with the MAF connected it is forlorn measuring the air that is getting later the MAF, as a result if the intake manifold is sucking in expose the let breathe to fuel ratio will be unconditionally out and cause the engine to stal