Car Wiring Colours

This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and hence not compensated for and can thin the engine out and can moreover allow the engine to rev in the works bearing in mind not desired causing scratchy running. As its a mechanical deviation it tends not to slant on the deviation lively and you can sometimes listen a hissing noise once the engine running.

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I did re-check them tho. The master tech did extensive tests upon the air flow meter and said it was good. in imitation of I unplug it and direct the motor, the car runs coarse and at 850ish. I can abandoned guess that my other rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of all this. I don't think the tps has that much run in the substitute of rpm though? I think it and no-one else adjusts it going on for 1k..

This could be a large vacuum leak ,with the MAF aligned it is abandoned measuring the air that is getting with the MAF, therefore if the intake manifold is sucking in freshen the freshen to fuel ratio will be completely out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. once carb cleaner spray spray can in the area of the hissing following the engine direction and similar to you listen the engine stall or rev unconventional there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

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