One of the best mods I made for my bike.

 

To the last question, the answer is yes. If your bike will run, even on a map with Fuel Adj. values zeroed-out, you can auto-tune to create an optimal AFR tune, and you can do it without further interaction. IOW, you normally don't need to continually "accept trims" to maintain an optimal tune. AT creates trim tables (one for each cylinder) that change continually as you ride based on your Target AFR values. Those trim tables can be kept unedited or you can accept trims once, twice, or 20 times--as the bike will run the same regardless. I did a write-up on AT using the map switch to create a lean map for mileage and richer map for cooling when needed, and it goes into the relationship between the Trim and Target AFR tables in more detail.

There is one caveat to the leave-it-and-forget-it concept, however. If the map is way off and trims exceed the Max Enleanment and/or Max Enrichment settings, you will need to either accept trims one or more times or change the Max settings. For example, if your Max Enrichment is set to 20 and your trims hit 20 and need to go higher, it will stay at 20 until you change the Max setting or accept trims. When you accept trims the Trim Table values are applied to the Fuel Adj. values and are reset back to zero. IOW, if your Fuel Adj. is 10 at 2000 RPM @ 15% TP (base PCV map) and trim is -5 in that location, your net fuel adjustment will be 5. If you accept trims it will take 10-5 and write 5 to the Fuel Adj. Table in that location, then zero the trim value. Thus, you have a fuel adjustment value of 5 either way.

You still may need to do some manual editing of your Fuel Adj. and Target AFR tables to address decel pop, as DJ doesn't recommend using any Target AFR values in the 0% column, mostly because of reversion issues. If air gets to the O2 sensor you can get false readings, and there's more risk of that on decel. If you enter "0" in a given cell in the Target AFR Tables it will revert to the Fuel Adj. value for that location and will not auto-tune, thus won't change.

 

thanks guys for all the help..much appreciated!!