Check the hose clips for tightness and inspect the trunking for any cracks or splits and plus all the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best pretentiousness to find a leak is to have the engine admin and hot and subsequently vaporizer lighter gas /propane or brake cleaner as regards each joint in turn. If the engine rev s in the works 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 tiny more about the difficulty history. It currently has a master tech approved idle expose govern valve and tps installed. without moving 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. past the MAF is plugged in subsequently the car will stall unless I put my foot on the accelerator. There is then an intermittent popping sound coming at idle.