Check the hose clips for tightness and inspect the trunking for any cracks or splits and with every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best showing off to find a leak is to have the engine dealing out and warm and after that spray lighter gas /propane or brake cleaner approximately each joint in turn. If the engine rev s up 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 virtually the burden history. It currently has a master tech ascribed idle freshen manage valve and tps installed. without touching anything, the last (used) ecu and my original, would rule in the car without this symptom.
I don't have any check engine lights unless I unplug the MAF sensor. with the MAF is plugged in after that the car will stall unless I put my foot on the accelerator. There is furthermore an intermittent popping sealed coming at idle.