9 pin connector - dash cluster - 69 'Cuda

long overdue update, cause I just had time to get back to this.

while the dash was out we took the time to "'refinish" the dash surround.
It looks much better than before.
Also painted the gauge needles neon orange, tach needle came off during this process, but I think I got it back in place, (that's another thread).

Also cleaned up the heater box and associated bit.

I ended up snapping a pin on the PCB for the 9 pin connector, could have resoldered, but bought new aftermarket (heaterboxguy?). The PCBs seem well made and the 9 pin connector pins are much more robust than factory.

I started this project because oil pressure gauge was non-responsive.
IT NOW WORKS, but most likely because I also replaced the sender.
The sender that was on the car showed no resistance change when I pressurized it with air.
Constant 70 ohms or so.
The new sender varies from 70 - ~ 30 ohms when pressurized.

Sadly, the tach does not work.
I either didn't connect correctly, or the needle is not seated correctly.

Off to research correct wiring connections on back of tach, one eye connector on a post and one push on connector on a post.
really hoping it is wire error and not needle issue

sob.

Thanks for the earlier help.

Craig