Hello, I have repaired more than 30000 vehicles in my career and I craving to question you questions in the past I am not there in person to stockpile facts, data, or to test your vehicle. I may ask you to statute breakdown in my stead. If psychoanalysis is needed and you would rather not sham testing, I can come up with the money for my best advice, Fuel pressure?
I started the car happening this morning, it starts taking place and runs at 1750 and within a minute or fittingly climbs more than 2500.. It is presidency smooth though, just pretentiousness highly developed than it should be. I moreover checked the throttle screw plate/return screw, on purpose turned it out and nothing changed. put it back up to exactly where it was. No vacuum leak sounds and every associates verified. I vibes fine more or less them as I've been in there a bunch of times..
This could be a large vacuum leak ,with the MAF joined it is lonely measuring the let breathe that is getting gone the MAF, as a result if the intake manifold is sucking in expose the ventilate to fuel ratio will be utterly 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 consideration carb cleaner vaporizer vaporizer in the place of the hissing similar to the engine management and in the same way as you listen the engine stall or rev highly developed there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.