Check the hose clips for tightness and inspect the trunking for any cracks or splits and then every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best pretension to find a leak is to have the engine executive and warm and next spray can lighter gas /propane or brake cleaner in relation to each joint in turn. If the engine rev s going on 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 tiny more not quite the burden history. It currently has a master tech certified idle expose manage valve and tps installed. without upsetting anything, the last (used) ecu and my original, would rule in the car without this symptom.
I'm reviewing your ask now, and will publicize urge on with your reply ASAP. Rgds Greg. What malformation codes accomplish you have. Does the engine manage afterward the MAF disconnected. in the same way as the loud hissing sealed this could be your problem. This could be a large vacuum leak ,with the MAF aligned it is deserted measuring the ventilate that is getting considering the MAF, appropriately if the intake manifold is sucking in expose the ventilate to fuel ratio will be completely out and cause the engine to stal