Supercharger.. Where did we make a mistake? HELP..!

[ReSuL]

My dear friends,

I have an eaton m90 kit from a thunderbird and I have finished mounting the SC on the engine all the drive belts and pipes are ready. the setup is:

Air filter / AFM / Throotle body / Supercharger / Air intake manifold / engine   the by pass valve combines the before and after the SC..

after we did the setup and start the engine, we saw that the engine did not start if you do not press the acceleration pedal.. and of course it did not idle and the engine stopped. and the AFR is 22.0 most of the time. some times it comes about 16.0 than goes up again. we have used 13 cm SC pulley just to play it safe we want 0.5 bar boost but these are not important issues for now..

Now, my guess it that the problem is about ICV connections.. one side goes to air intake and the other is after AFM just before Throttle body... here is a picture that I drew to show what goes where...



so, where is our mistake?? As I know while idling there is no boost that goes into engine in this setup so it should have idled fine. our problem is either in ICV and where the pipes connects or it is a bypass problem?? by the way from where the bypass valve gets vacuum? just before the supercharger or from the intake manifold??

thank you for your help in advance...

[doitover]

Your picture looks correct to me. The vacuum comes from the intake manifold.

[MLM]

ICV should bypass the throttle plate only not connect to the plenum direct. The way it is now you will have boost returning up past ICV (they are not one way or sealed) ahead of the throttle plate behind afm. Would confuse the hell out of the ecu at the least