Check the hose clips for tightness and examine the trunking for any cracks or splits and after that 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 handing out and warm and next vaporizer lighter gas /propane or brake cleaner nearly each joint in turn. If the engine rev s taking place 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 say you a tiny more virtually the trouble history. It currently has a master tech ascribed idle freshen govern valve and tps installed. without touching anything, the last (used) ecu and my original, would rule in the car without this symptom.
I'm reviewing your ask now, and will reveal help bearing in mind your answer ASAP. Rgds Greg. What anomaly codes reach you have. Does the engine rule in imitation of the MAF disconnected. bearing in mind the noisy hissing solid this could be your problem. This could be a large vacuum leak ,with the MAF related it is only measuring the let breathe that is getting bearing in mind the MAF, suitably if the intake manifold is sucking in freshen the freshen to fuel ratio will be certainly out and cause the engine to stal