Well i went over this taurus over and over but everyone i talk to says i got one. BUT how do i find it there is only 4 ports on the intake manifold and are easily traced one is the source for the Misc items such as the cruise and booster, the other is for the PCV, another one for the fuel pressure regulator, and one for the map sensor. i got new seals on the injectors and i've installed millions of injectors i hear no hiss i got the upper and lower intake gaskets replaced i've tried carb cleaner but the searching idle and stalling is still there?