wiring in sequential shift light

[sexy_gt]

Ive bought one all wired up, apart from one wire. I think i may of found rev signal from pin 6 on the black dial plug... only it only floats around 6v no matter what rpm. This is the only signal that moves with rpm and its not a lot. Yet using it to setup the shift light wont work.

I have tried to get a signal from the diagnostic port but think predator management does not work with this?

Any ideas what voltage im looking for and from what wire, i have searched here and google, i see other members have fitted aftermarket tacos but all have failed to state what voltage to look for.

Thanks in advance :wacko:

[106maxi]

Mine needed perm +12v, earth and signal from either DTA or Stack tacho.

[sexy_gt]

Thanks, do you remember if the rmp signal is pulse or variable voltage with rpm?

My rmp dial works so im stumped as to why i cant find the signal. The one i think to be rpm is around 6v .

[106maxi]

I don't know, it was effectively plug and play.
The winter strip down is well underway so I can't measure it now either.
Sorry.