Check the hose clips for tightness and inspect the trunking for any cracks or splits and as a consequence all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best pretension to find a leak is to have the engine organization and warm and next spray lighter gas /propane or brake cleaner in the region of each joint in turn. If the engine rev s stirring 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 approximately the problem history. It currently has a master tech recognized idle freshen govern valve and tps installed. without moving anything, the last (used) ecu and my original, would manage in the car without this symptom.
I don't have any check engine lights unless I unplug the MAF sensor. later the MAF is plugged in next the car will stall unless I put my foot on the accelerator. There is along with an intermittent popping sound coming at idle.