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 management and hot and subsequently spray lighter gas /propane or brake cleaner in this area 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 say you a tiny more roughly the suffering history. It currently has a master tech official idle let breathe manage valve and tps installed. without distressing 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. like the MAF is plugged in after that the car will stall unless I put my foot on the accelerator. There is as a consequence an intermittent popping hermetically sealed coming at idle.