Will Battery Disconnect Reset Tune ?

[2therock]

I have a tune in a truck that the driver says it seems to not be as good as when 1st tuned.

I told him it may be the summer heat or lousy fuel but will look into it.

I was wondering if the fact he is not a led foot perhaps some fuzzy logic type of self learning may have came into play?

If I tell him to disconnect the battery over night will this do a kind of reset of anything the vehicle has possibly done on its own?

[smithers]

To answer 'will battery Disconnect Reset tune?' the answer is no.

What does occur though, is any RAM stored information such as LTFT or LTITs will be zeroed, and if a tune was tuned without these reset or just a crap tune, you will notice.

I cant comment on the tune being lousy...
Some of it depends how the ECM was left... as in adaptive settings.
Any 'Learning; will be wiped if the appropriate fuses and/or battery is disconnected for a period of time.

[2therock]

Thanks your answer was what I was looking for.

Thanks for your patience with my poorly phrased question. I didn't mean reset to stock.