This could be an airleak after the airflow meter, any freshen dragged in here isn t seen by the ECU and suitably not compensated for and can lean the engine out and can as well as allow the engine to rev going on in the manner of not desired causing severe running. As its a mechanical idiosyncrasy it tends not to aim upon the defect open 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 tiny more very nearly the difficulty history. It currently has a master tech approved idle expose manage valve and tps installed. without moving anything, the last (used) ecu and my original, would direct in the car without this symptom.
I'm reviewing your question now, and will post encourage later than your reply ASAP. Rgds Greg. What fault codes reach you have. Does the engine direct later than the MAF disconnected. taking into consideration the noisy hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF connected it is without help measuring the expose that is getting gone the MAF, appropriately if the intake manifold is sucking in expose the let breathe to fuel ratio will be very out and cause the engine to stal
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