Map trace trails
What is map trails?: Steps for map
trails: Enabling Map Trails Clearing Map Trails:
Map trails highlights the area of the fuel maps where the
ecu read during a pull. This for quick reference to find where the afr was not
what you want.
To use live plot Rpm vs Afr/Boost wideband
o2 logging must be enabled
Enable map trails
Enable Live plot Rpm vs
Afr/Boost
Make a pull(dyno/street)
Look at the plot
Spot a wrong AFR and
lookup in the table with map trail where that spot is 
Enable map trails by clicking the map
trace trail menu item

Click this icon to
clear map trails
Click the menu item Clear Map Trace
Trail from above screen.
Example:
With map trails you see
where the ecu read during a pull.
You know where the dip happend and you can
change the 2 rows(8000/8300)(mabye from column 14 to the
end)