Speedo calibration - Dakota Digital HDX/ HP Tuners

[NC_John]

Originally Posted by Wildkarde

All of the VDX/HDX units I have seen calibrate the speedo by putting the system into calibration mode, press button, drive 1 measured mile, press the button again.

how dies yours calibrate, and how do you have it hooked up?

Mine is getting all data through a bim module from the pcm. In this configuration all you can do for speedo calibration is adjust the incoming vss signal up or down 25%.

I know I can adjust the signal out of the pcm to the cluster through HP Tuners but am nervous because apparently its possible to piss off the pcm and brick it with too big of a change in these tables. Even HP Tuners acknowledged this in their forum but the posts were quite dated so I don't know if its still an issue.