[Kingtal0n]

"data-logit" plugs into power FC and turns it into a typical stand-alone computer. You can re-sell the data-logit when you are done to re-coup the money if you want. Use a popular wideband, drive the car around and log the values like this.



Get rid of un-sure data points, by examining the number of data-points collected, averages, minimum and maximum valves recorded, and by reviewing the chart to see how the map was moving when those points were being recorded. Here is an example.



The closer you are to a final tune, the more careful you will want to be when using recorded values. For an initial tune, most of the values are useful. Later, you will want to smooth them (make the changes less intense) and remove any low-quality data points.

Finally, you paste the result back into the PFC.



This is a very powerful feature because you no longer have to watch the fuel map while you drive to tune the vehicle. You can drive for hours if you want, then collect and use any valid data-points to re-tune the fuel map. This excel file is downloaded free from the data-logit web group where they also update the software.