Oh no
 

something deffently happend the controler isnt working. the car starts and every thing works but i have notice that the tach dose not work any more????? what is going on with the power fc help

Could you be a little more specific? Have you done anything to the car before things stopped working?! You might also want to check out the engine management section.

-Alex

Edit: I think you may have accidentally posted in the wrong section, you have the same post located here... https://www.rx7club.com/showthread.p...63#post4077863

Did you set it to peak mode? This is where it only shows the highest readings and anything less won't be displayed on the screen. If the tach shows a rpm reading of say 2500 rpm rev it to 3 grand and the number should raise. What is the commander reading?