I have read that you scan the truck, make changes, drive it, and then re-scan over a period of a week or so to give it time to learn the changes. My question is, how does it work with a dyno tune then? When you take your truck to have it dynotuned and it is on there for lets say an hour or two. How good is the tune then?

 

They can hold it in each cell of the v.e table and adjust (in real time tunning) unitl perfict, but you just hit on one advantage of a street tune...

 

Okay, that makes sense. I just wanted to see if I understood it.

 

Also they generally use a wideband o2 sensor on the dyno so the adjustments are much more accurate to begin with. The ability to fine tune on the road is a nice benifit on top of a dyno tune.