MS II set up help?
 

Hello!

I have MSII board and sc 3.0 engine. So i wonder where you are taked that rmp singnall to mega?
From cdi box td pin or coil ?
I want use mega only fuel setup.
Also what is setups in megas board then?

jopi73 I think what you are asking is where do you get a good tach signal for the Megasquirt? I tried unsuccessfully to get a tach signal from the CDI harness and ended up buying a "tach adapter" from Tbitz racing. You can do a search for his address on this forum. Others may have a different suggestion. Are you useing the CIS intake runners? Or a Carrera manifold? Or throttle bodies? Are you running a relay board? I am running MSII version 3.0 with 46mm TWM throttle bodies with the relay board. I almost have it dialed in I still have a few weak spots that I am tuning out but it runs great at full throttle. If you need future advice feel free to send me a PM and I'll try to help.

Sorry forgot to say the tach adapter connects to the coil but don't try to hook up to the coil without the adapter, voltage is too high and you will burn up your MS.

thanks
dont ask how i know that coil voltage.
Yes i use cis intake runners and relay board. Also i have Ms II
3.0. I have drive this set up but something is wrong in that tach signal. I have taket it in cdi td point. (same point where original tachometer have it 6,8volt)
set up in ms board is something like jumppers vrout or something.??
Some how it seems to send fuel too late i think?
it idles but when i raise trohle engine vibrate/schakes and popping. First when i asking here Finland they said to me it´s allright to take that tach signl there. Now nobody can help or say.
When i start looking here i allways wondering why tbitz use coil and some adapter because cdi box charge coil to using 680 volts.

Without a good stable tach signal it is not going to run right. I struggled for weeks before I realized it was the tach signal that was driving me crazy. Good luck.