8000 RPM @ Idle

[Lextech]

I just tried the Dashboard function for the first time. The EFILive dash shows
a little over 8000RPM when the truck is idling at about 800 RPM. Everything else seems fine. I need some help.

[dc_justin]

When you go to the Data tab, does it show RPM as 8000 or 800?

[Lextech]

At lunch time the EFILive tach was 10x too high. Now I just reconnected after work to check what the data tab says, and the tach is correct. I did not change anything--Just shut it off went back to work for 4 hrs, tried it,and its GOOD.
I don't know why---But I'll take it.