Noble__1

@Waz1Thanks, that is very helpful my chassis is a ABS only, is there a way to tell if the cluster is a TCS and ABS cluster or does shining a torch into the back of the bulb socket good enough? The nismo cluster does however have all the sockets for it e.g. TCS off and SLIP lights.

So could it then be a faulty speedo then? if the speed signal is no different what else could need changing, I did see the r34 service manual and the AC wave the ECU receives? and why would my engine light with code 14 engage?

I connected it up but the speedo doesn't work. i also get the engine code 14 for speed sensor which causes the hicas to lock up and the power steering pump to not work. I have connected my old cluster in and it works fine again. apparently i need the r33 rb25de signal sensor which fits the transmission but sends a larger pulse for the speedo and ecu to read.

Hey I am having a similar issue. Have a gtt Nismo cluster for my r34 GTV, everything works except for the speedo. I believe this to be a speed sensor issue and the difference in teeth on the worm gear. The r34 GTV runs the RB20DE gear box. Were you able to solve this issue with the different speed sensors?