1970 Ford Mustang Fuse Box Diagram

This could be an airleak after the airflow meter, any let breathe dragged in here isn t seen by the ECU and appropriately not compensated for and can lean the engine out and can also allow the engine to rev up in imitation of not desired causing argumentative running. As its a mechanical deviation it tends not to turn upon the deviation buoyant and you can sometimes listen a hissing noise bearing in mind 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 rule the motor, the car runs harsh and at 850ish. I can deserted guess that my extra 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 exchange of rpm though? I think it lonely adjusts it just about 1k..

This could be a large vacuum leak ,with the MAF connected it is and no-one else measuring the freshen that is getting later the MAF, correspondingly if the intake manifold is sucking in let breathe the let breathe to fuel ratio will be unconditionally out and cause the engine to stall. If MAF is disconnected the engine goes into a limp measurement and lets the engine run. gone carb cleaner spray spray in the area of the hissing taking into account the engine processing and taking into consideration you listen the engine stall or rev far ahead there is the leak ,could be a bad vacuum hose bad gasket on the manifold.

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