Ok so since nobody seems to know the location of this valve and I cannot find it anywhere on my engine I decided to bypass it. I ran into another problem, it appears I am missing a vacuum line! Can anyone tell me where the line coming out of component 3 (check valve with integrated restrictor) is suppose to connect to the intake manifold?



I have one port that is currently plugged, but I believe that is for the transmission vacuum hookup and my car is a manual so no vac lines running to trans. I do have a port near the firewall, but it is connected to the vacuum hose that runs up through the firewall and into the cabin. Any help is appreciated, getting desperate here!

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1983 240D 4spd
1984 190E 5spd
1987 300D (sitting for a year or two)
1989 Toyota Camry 5spd (current DD)