This could be an airleak after the airflow meter, any ventilate dragged in here isn t seen by the ECU and so not compensated for and can thin the engine out and can next allow the engine to rev up when not desired causing rasping running. As its a mechanical idiosyncrasy it tends not to face upon the irregularity vivacious and you can sometimes listen a hissing noise subsequent to the engine running.
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I did re-check them tho. The master tech did extensive tests on the ventilate flow meter and said it was good. in the same way as I unplug it and control the motor, the car runs aggressive and at 850ish. I can abandoned guess that my additional rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of every this. I don't think the tps has that much control in the stand-in of rpm though? I think it abandoned adjusts it in the region of 1k..
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you taking place to date upon every maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms going on and is warmed up? oftentimes in engine discharge duty many factors may cause the similar symptom(s)
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