Microtech RPM reading does not match Tach readings.
 

I just noticed that today when I went to start my car. the Microtech reads almost double the amount of RPM's as my tachometer. I have done nothing to the tach wiring, it is completely stock. My throttle is set correctly also. What could it be?

Make sure that CONFIG in screen 31 is set to 4 cylinder.

Oh okay, I'll take a look at that.

Another question: What is my TPS % supposed to be at idle? Mine is currently reading .08%

TPS should be zero. Run through the calibration procedure, making sure you get the astrisk...