matt94z

iTrader: (49)

The shift light will flash when you turn the key on, so I know it should work. The problem is that no matter which rpm pill I put in it, the light will not flash. I was told to tap into the whit wire on the black pcm plug. Is this right? What else can I try??? Help.

regorih383

iTrader: (21)

Wish i could help but, for what i remember its not the white wier

Chuckels

iTrader: (4)

unbolt the PCM and look for white wire #13 on the RED connector

matt94z

iTrader: (49)

Thanks man, I'll give try that tonight.

dhdenney

iTrader: (53)

I do not have an Autometer light but rather an MSD so I realize different companies are gonna have different schematics for their products. But for comparison: my light's RPM input wire goes to the coil's negative terminal for signal. If you have an MSD ignition, it will have a tach output connector on it.