I tried hunting down an answer but couldn't find anything.

Anyway, my logs in EvoScan have a timing discrepancy between the RPM and the AFR. The plot on the graph looks fine, but if you hover over the line value it will show static RPM's which are obviously wrong. My AFR's also seem to be going as high as 60-1 which I know isn't correct.

Here is a RPM/afr point from a 2nd gear pull where the RPM is obviously not in line with what the plot shows. The AFR isn't correct either at this point where it should be 20.



Here are two points further down. The RPM plot is getting near the top end but the RPM isn't close. Again, the AFR seems correct but it's not lined up with the RPM plot at all.





I am sure there is some scaling or something I am missing but I have just started using Evoscan and nothing I do seems to have any effect. I seems like the two data streams are out of sync with each other. If I go towards the end of the pull and pick a point, the AFR just disappears entirely and it will only show an RPM.
If anyone knows what's up with this problem, please help a brother out.

/brox

 

version?

some older version had this problem.

try 2.6b6.

 

version is 2.5. I just DL'd 2.6b4 which was as high as I saw on the site and the problem persists. I'll do a few more logs tomorrow when I have the time and see what happens.

/brox

 

i have similar problems. (not showing sometimes)

its because afr (using serial) isn't logged every time around.

try b6 - its in the start of the 2.6 thread by evo4mad

 

One way to log with precision and accuracy is by avoiding OBDII alltogether using a logging system that supports external sensors and data. But this will cost some and requires a good amount of setup, wiring, and work.