Datsun Roadster Forum-311s.org

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

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

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 .

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

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

https://shop.classicinstruments.com/sn74z

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

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

pm sent

Thanks Pat!