Check the hose clips for tightness and inspect the trunking for any cracks or splits and afterward all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best pretentiousness to locate a leak is to have the engine meting out and hot and then spray can lighter gas /propane or brake cleaner approaching 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 little more about the pain history. It currently has a master tech recognized idle let breathe govern valve and tps installed. without heartwarming anything, the last (used) ecu and my original, would run in the car without this symptom.
I don't have any check engine lights unless I unplug the MAF sensor. as soon as the MAF is plugged in subsequently the car will stall unless I put my foot upon the accelerator. There is moreover an intermittent popping hermetically sealed coming at idle.