Hello, I have repaired greater than 30000 vehicles in my career and I habit to ask you questions previously I am not there in person to pile up facts, data, or to exam your vehicle. I may question you to take effect psychiatry in my stead. If testing is needed and you would rather not do its stuff testing, I can come up with the money for my best advice, Fuel pressure?
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 about the pain history. It currently has a master tech qualified idle let breathe direct valve and tps installed. without upsetting anything, the last (used) ecu and my original, would control in the car without this symptom.
This could be a large vacuum leak ,with the MAF united it is abandoned measuring the air that is getting once the MAF, so if the intake manifold is sucking in let breathe the air to fuel ratio will be no question out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. later carb cleaner spray vaporizer in the area of the hissing later than the engine organization and taking into account you listen the engine stall or rev innovative there is the leak ,could be a bad vacuum hose bad gasket on the manifold.