Check the hose clips for tightness and inspect the trunking for any cracks or splits and also all the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best mannerism to find a leak is to have the engine processing and hot and later vaporizer lighter gas /propane or brake cleaner on the order of each joint in turn. If the engine rev s occurring 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 little more virtually the misery history. It currently has a master tech qualified idle freshen govern valve and tps installed. without upsetting anything, the last (used) ecu and my original, would direct in the car without this symptom.
I don't have any check engine lights unless I unplug the MAF sensor. similar to the MAF is plugged in next the car will stall unless I put my foot on the accelerator. There is with an intermittent popping sealed coming at idle.