Check the hose clips for tightness and examine the trunking for any cracks or splits and next all the vacuum system, the small bore pipes and fittings for cracks and missing parts. The best artifice to locate a leak is to have the engine running and warm and subsequently spray can lighter gas /propane or brake cleaner around each joint in turn. If the engine rev s happening you ve found your leak.
I did re-check them tho. The master tech did extensive tests on the air flow meter and said it was good. like I unplug it and direct the motor, the car runs rasping and at 850ish. I can unaccompanied guess that my further 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 substitute of rpm though? I think it only adjusts it all but 1k..
This could be a large vacuum leak ,with the MAF linked it is forlorn measuring the air that is getting gone the MAF, correspondingly if the intake manifold is sucking in let breathe the ventilate 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. taking into account carb cleaner vaporizer spray in the place of the hissing considering the engine giving out and taking into account you listen the engine stall or rev higher there is the leak ,could be a bad vacuum hose bad gasket on the manifold.