Check the hose clips for tightness and inspect the trunking for any cracks or splits and along with every the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best quirk to find a leak is to have the engine direction and warm and after that 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.
Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me tell you a little more practically the misfortune history. It currently has a master tech endorsed idle expose govern valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would manage in the car without this symptom.
This could be a large vacuum leak ,with the MAF joined it is only measuring the expose that is getting past the MAF, for that reason if the intake manifold is sucking in expose the freshen to fuel ratio will be completely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. bearing in mind carb cleaner spray can vaporizer in the place of the hissing like the engine admin and next you hear the engine stall or rev unconventional there is the leak ,could be a bad vacuum hose bad gasket on the manifold.