bad rpm signal?
 

My car has epic gheyness. Seriously when it is moist out side or raining and my car is running the thing will sound like it skips, but the tach drops off when it does it. I thought it was my 220k factory ecu so i just threw in my megasquirt, it still did it, so i checked the underhood ground, the bracket was a little loose so i tightened it. It still didn`t fix. I searched bad cas and still didn`t find anything specific enough. i was leaning toward the cas. what do you all think?

Check the ground that is connected to the coil and the injector harness and also check the ground for the block. I had the same thing happen to my car and one of my spark plug wires were arcing to the block in the spark plug tube and the wires were not even 3 months old. Just give them a good look over. Good Luck.

So your tach bounces too? Mine does the same shit, its irritating as hell. I've moved grounds about 15 times and no luck...

Slap a crank wheel on that mofo. It will work out cheaper than replacing the CAS and be better.

I have a cas back home, i just didn`t know if it was worth the hassle of shipping it here, but i would me down for a crank wheel too.