Check the hose clips for tightness and inspect the trunking for any cracks or splits and next all the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best way to find a leak is to have the engine admin and hot and next vaporizer lighter gas /propane or brake cleaner on the order of each joint in turn. If the engine rev s going on you ve found your leak.
I did re-check them tho. The master tech did extensive tests upon the let breathe flow meter and said it was good. gone I unplug it and run the motor, the car runs rough and at 850ish. I can unaccompanied 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 all this. I don't think the tps has that much run in the rotate of rpm though? I think it only adjusts it roughly speaking 1k..
I'm reviewing your question now, and will declare support taking into consideration your answer ASAP. Rgds Greg. What idiosyncrasy codes attain you have. Does the engine govern with the MAF disconnected. gone the loud hissing strong this could be your problem. This could be a large vacuum leak ,with the MAF aligned it is and no-one else measuring the let breathe that is getting when the MAF, appropriately if the intake manifold is sucking in air the freshen to fuel ratio will be utterly out and cause the engine to stal