Hey Folks

I am trying to setup a SGI-5 E on my T56 VSS and connect it to my GTA buffer box, I get the LED on the SGI to pulse when I am driving but no speed registering. Does anyone know the correct settings on the SGI? (HI-LOW, SiG: Lo or HI, or P-U on or off) for a T56 swap?

Thanks

 

I have a SGI-5c. Close enough.

You don't connect it to the buffer box.... It replaces the buffer box. The SGI has a 2000 ppm output for cruise, and a 4000 ppm output for speedometer. Going on memory, but I think all my dip switches are set to zero. If you read the instruction manual you can figure out that switches #1, #2, and #4 get set to zero (0). Only switch #3 is questionable whether it gets set to 0 or 1. If setting it to 0 doesn't work then try setting it to 1. This is how I wired it, Post $178, https://www.thirdgen.org/forums/ltx-...ml#post5821648

I suppose you could use it as an input to the buffer box, but why???

 

The SGI-5E has a digital set-up instead of dip switches. I just want to make sure I have the settings right before I trouble shoot wiring. Maybe I'll try run the speedo right off the Dakota and if I can get that to work I'll connect the ECM and cruise directly as well.

 

Does ECM care what is the speed?

 

It shuts fans off at highway speed, don't know about anything else on a manual.