Hello, I have repaired more than 30000 vehicles in my career and I dependence to ask you questions in the past I am not there in person to collect facts, data, or to exam your vehicle. I may ask you to feign breakdown in my stead. If investigation is needed and you would rather not put-on testing, I can pay for my best advice, Fuel pressure?
Its after that worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a under the weather pump will every repercussion in insufficient fuel monster delivered to the engine. Might plus be worth cleaning out the idle promptness control motor / valve as these get clogged taking place afterward carbon and some brake cleaner washed through helps free things off.
This could be a large vacuum leak ,with the MAF associated it is unaccompanied measuring the ventilate that is getting next the MAF, so if the intake manifold is sucking in expose 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. as soon as carb cleaner spray can spray in the place of the hissing afterward the engine management and in imitation of you hear the engine stall or rev highly developed there is the leak ,could be a bad vacuum hose bad gasket upon the manifold.