you might be able to do this with Forscan software if you order a $40 USB ODBII reader. THere are BLuetooth ones as well.
I ordered the USB one, interested to see what I can do
Thanks, I'll check that out.
I'm getting conflicting information. Some are saying speedo calibration is a must do and others are saying it's not (internet search - not this forum). So other than the speedometer being off, are there any serious implications?