i have a 93 formula lt1 6 speed and i bought a shift light nad the directions are retarded.. i know one wire has to go to the coil right?? which wire on the coil does it go to?? my coil has like 4 wires going in it.. anything would help thanks

 

I used the pink/black wire on the tach. You can also use the tach wire at the PCM.

 

what wire should i use at the pcm, do u know which one it is??or color?

 

Isn't the tach output wire white?

 

white wire on red connector