Check the hose clips for tightness and examine the trunking for any cracks or splits and along with every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best habit to locate a leak is to have the engine executive and warm and then spray can lighter gas /propane or brake cleaner roughly speaking 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 more or less the problem history. It currently has a master tech recognized idle air direct valve and tps installed. without touching anything, the last (used) ecu and my original, would govern in the car without this symptom.
Hello the TPS does have an effect upon switching the car into idle mode so I'd recommend to make certain the throttle dish is 100% closed and not slightly grounded in the manner of carbon. and later adjust the TPS correspondingly that the IDL fasten is continuous to the E2 pin bearing in mind the throttle is closed, and approach circuit when the throttle is just cracked. Don't make miserable not quite any voltages, the IDL entrance is the essentially important one.