I totally agree! And further more, I'd have to say that all S30's ARE NOT wired the same. So, there is no instruction manual that can be written to make it fit everyone's car. After not sleeping for about a week constantly thinking about this, I finally fired it up last night. I can report that Megasquirt is extremely sensitive to ground points. I moved from chassis ground to engine ground and it liked that. I was even thinking of adding another ground wire from the battery to the engine. It runs like a dream now. I think I added a bunch of horsepower with this mod. And no more smoke out the tailpipe. Now two questions. My dash tachometer isn't working at all. I plugged the MS tach out into the blue wire at the old coil location that I think drove the tach. Didn't work. Any ideas ? Also, what is the sequence to "Burn" a change in Tuner Studio ? After setting my timing with the engine running, I hit "Burn" and it killed the engine. Wasn't expecting that. Also, what is my next move now? Do I need to go back thru Tuner Studio and calibrate all my sensors or, just start driving it and get auto tune to do its thing first?