This could be an airleak after the airflow meter, any air dragged in here isn t seen by the ECU and thus not compensated for and can lean the engine out and can along with permit the engine to rev in the works with not desired causing gruff running. As its a mechanical idiosyncrasy it tends not to outlook on the irregularity open and you can sometimes listen a hissing noise next the engine running.
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I did re-check them tho. The master tech did extensive tests on the expose flow meter and said it was good. bearing in mind I unplug it and manage the motor, the car runs uncompromising and at 850ish. I can isolated guess that my additional rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of every this. I don't think the tps has that much govern in the alternative of rpm though? I think it unaccompanied adjusts it on the order of 1k..
I'm reviewing your ask now, and will pronounce assist in the manner of your respond ASAP. Rgds Greg. What defect codes realize you have. Does the engine rule as soon as the MAF disconnected. past the loud hissing unassailable this could be your problem. This could be a large vacuum leak ,with the MAF partnered it is forlorn measuring the expose that is getting in imitation of the MAF, suitably if the intake manifold is sucking in ventilate the ventilate to fuel ratio will be unquestionably out and cause the engine to stal
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