Hi, guys. First post here.

I've always wanted a tach in my Nissan 1400 but they are few and far between here and get snatched up so quickly. I eventually found a Datsun 1200 GX someone was stripping and got an OEM induction loop tach from 1973. Unfortunately the Datsun was a non-runner so there wasn't any way to see that it was working but I decided to take my chances.

Anyway, I recently rebuilt the wiring from front to back of my bakkie and deleted the ballast resistor as you don't need it with EI. As recommended on the tech wiki page, I wired the tach in series with the ignition switch and the positive terminal on the coil. Bakkie starts and runs perfectly but no tach reading at all. The tech wiki does say that the early Datsun tach's work with both points and condenser ignition and electronic ignition. However, so many other forms out there say that induction loop tach's don't work with electronic ignition systems?

I tested all the grounds and the separate 12v for the tach and everything seems fine there.

I was wondering if anyone had any other wiring suggestions I could try? My other idea was to swap the points and condenser back in with the ballast resistor just to see if the rev counter even works, but thought I'd ask here first in case there's a simple fix.

Thanks all.