Best Vac/boost source for Gauge and ECU MAP
 

https://cimg6.ibsrv.net/gimg/www.mia...fe689729e1.jpg
https://cimg1.ibsrv.net/gimg/www.mia...bfe89ff89a.jpg


https://cimg2.ibsrv.net/gimg/www.mia...9e6faa20e8.jpg
Think I have asked long ago but never found a definitive answer. I guess once I am up and running again could switch between these 2 and see if any difference.

Currently using an open port normally blocked on lower rear of intake going to #4 intake runner. Most instructions and installs I see use a port at the front behind the throttle body. Cruise control or charcoal canister port. I currently use the CC port for my blowoff. Wondering if canister port is still needed. Don't believe most stand alones control that purge valve any longer. The ME221 uses input/wires for EBC.

Did a little more searching and found this in some FM notes:

Only sealed items with very little fluctuation (boost gauge) should share the line with the MAP sensor. Also it is preferable to have it come into the manifold in the middle.
If this is not possible, the front of the manifold is the next best thing. You should still be sure that the signal will show both vacuum and boost. The signal line for the charcoal canister can be good for the BOV, the cruise control line can be a second-best choice.

1 = MAP line (for the engine management), boost gauge line.
2 = BOV/bypass line. This line should be tee’d into the charcoal canister line or into the cruise control line as a second best choice.
https://cimg4.ibsrv.net/gimg/www.mia...d418830c7f.png
And looks like purge control valve for charcoal canister is still controlled with standalones. Unless reassign those pins and use connector for EBC.