Can you overlay old datalog runs?

[Dave King]

Can you overlay old datalog runs to your current VE table? I know that hitting O automatically overlays your last datalog file. Can you overlay older datalog files?

Any help is appreciated.

 

[jjkv]

Yes....Just press the "ctrl " key and press "O" another window will

pop up then you may select the log to overlay.





John
Miss T

 

[bobc455]

Don't forget that if you overlay an old datalog onto your current VE table to try to improve it, you may just foul things up.

In other words if you use an old log and see 8% correction in a certain cell, don't try to correct your VE table unless you are sure that the VE table hasn't been changed (the computer won't know that).

-Bob Cunningham
bobc@gnttype.org

 

[JeffB]

that's why i always log "VE" itself so that you can trace through a log and see exactly what the ECU was using (based on how it was interpolating adjacent cells, etc.)... it also helps in the case where you modified your VE table... if your old VE value was 100 and you were getting 10% correction you really need a VE of 110... but if you've changed your maps since that log and now your current VE is 105 you don't want to add a full 10% to that, etc...