RAZO dual stage shift light

[HCR32 type M]

Hi, I have an old school RAZO dual stage shift light, and have hooked up the tach sense wire to pin 7 (yellow with red trace) on a R32 GTST and it is not seeing the correct signal.

I also hooked up behind the tacho with the same result.

The factory tacho works perfect,  and I have tested this in my other car, a SVO Fairmont Ghia  which has the same shift light, and the modules are both working correctly.

When I looked at the instructions that came with it, it is stating to pick up pin 41 (Green with black trace) Crank Position sensor (120')

Before I do this, I just wanted to see if anyone has come across this before?

I did some searching in the forums, but came blank with hooking up to pin 41...

Cheers Ange

[HCR32 type M]

Just as a follow up, pin 41 works perfect for the signal for a shift light....