i cant remember which pin it was but i know it was for the crank position sensor. it was a cleaner signal than the rpm signal and tuning got much easier once i did that.
When you say we need the injector adapter, do we need adapter #2 or 3??its been a while since i installed my emanage ultimate... but i do remember messing with tach signals. I think I ended up setting it to use the ignition signal as a rpm signal and I never had any issues advancing or retarding my ignition timing. I do know that when I tried to use the crank signal as the rpm input it did not respond well. Also, definitely remember that you need the injector adapter harness from mohdparts.com or you will get injector codes if you want to be able to add/trim injector pw. Also, I have my injector maps 1 and 2 set up for banks 1 and 2 respectively so all my fuel trims are practically zero.
I never did get the rev limit bypass to work right, even though it doesnt appear that our cars pull timing on the logs.
Good luck, I really do think the emanage is the best tuning solution next to a standalone, even better in some ways to flashing, and dont get me wrong, flashing is an awesome way to tune, but when it comes to highly modded eclipses, the stock ecu is just too much of a picky lil bitch to really tune it alone.