Speedo to Sr/Ka hook up

[Mattk]

Okay swap guys I need some help. I trying to figure out how to hook up a Speedhut speedo to the speed sensor and the ecm. In a 240sx the signal go to the instrument cluster which appears to process the signal and then sends it to the ecm. Well at least thats what it looks like.

Question: Can I take the signal from the speed sensor straight to the ecm and straight to the speedo (lets assume that Im not using a GPS speedo.)? Or do I have to use a signal converter like the SGI-100BT from Dakota Digital? (https://www.dakotadigital.com/index.cfm ... rd1192.htm)

I need a speed signal for the ecm I have a habit of over complicating things

[Hombre]

Following. I'm in the same exact situation in my KA swap. I'm leaning towards the GPS speedo at this point.

[redroadster]

What about the odometer ?
The Speedo/ odometer is a federal regulated item
They condider anyone other than authorized repair shops to be tampering with it .

[Mattk]

So I'm going to bump this one. Anyone Bueler!? I thinking this would be the same as the hook up for the SR.

[bobd]

I used these cable drive parts on my S13 SR20 with the original speedo. Found on this site in 2012, but can't find it now.
Pinion 32702-58S20
Plate-lock 32718-14601

[dynaguy]

https://shop.classicinstruments.com/sn74z

This is what I used to sort out my Classic instruments tach and speedo. Pat

[Mattk]

Thanks Pat! That’s what I’m looking for!

Did you run the VSS to the sn74z from the speed sensor and then split it to the speedo and ecm?

Cheers
Matthew

[dynaguy]

pm sent

[Mattk]

Thanks Pat!