FD Wiring Specialist

[Robbie98]

Hi guys looking for someone who knows there way around an FD especially the gauge cluster.

I have a universal loom coming off my Hondata Kpro V4 ECU and need to splice and connect the correct wires to the RPM, Speed, Oil and Temp on the cluster

If anyone's knows anyone could you please let me know

Many thanks
Robbie

 

[Jake_rorx7]

Here are some resources you may find useful

http://www.wright-here.net/files/manuals/1994%20RX-7%20wiring%20diagram.pdf

I suppose the first question would be are you splicing next to the instrument cluster plugs, or next to the ECU plug?

Diagram for the cluster:

Just figuring it out exactly, I'll let you know if I work out what wires to cut but I thought I'll give the diagrams in the meantime...

 

[Jake_rorx7]

I was expecting one speedo wire but there were two, hence why I was confused, it should be

speedo: 3C 3A
temp gauge 1D
temp light
oil pressure 2F
oil light 3J maybe?
tach not sure yet
fuel 2B
fuel light 2C

ignore the second page I sent thats just illumination I meant to send the other half but I dont think its too pertinent to what you need to look for:

 

[Robbie98]

I was expecting one speedo wire but there were two, hence why I was confused, it should be

speedo: 3C 3A
temp gauge 1D
temp light
oil pressure 2F
oil light 3J maybe?
tach not sure yet
fuel 2B
fuel light 2C

ignore the second page I sent thats just illumination I meant to send the other half but I dont think its too pertinent to what you need to look for:

View attachment 38171

Much appreciated mate thanks alot

I also got told that there was a loom/connector which plugged into the ECU right below the AC unit under the dash - it has a speedo sensor wire and RPM sensor wire which your meant to splice into and connect to you universal harness.

Any info on that

Check this comment from (jimlab) seventh comment down - https://www.rx7club.com/3rd-generation-specific-1993-2002-16/speed-sensor-271337/