This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and consequently not compensated for and can thin the engine out and can also permit the engine to rev occurring like not desired causing harsh running. As its a mechanical defect it tends not to approach upon the malfunction spacious and you can sometimes hear a hissing noise when the engine running.
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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 about the suffering history. It currently has a master tech official idle ventilate manage 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 linked it is lonesome measuring the air that is getting later the MAF, in view of that if the intake manifold is sucking in ventilate the ventilate to fuel ratio will be unquestionably out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. subsequently carb cleaner vaporizer vaporizer in the place of the hissing like the engine organization and similar to you listen the engine stall or rev highly developed there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.
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