MoneyShot

a question you have to ask is why the computer is watering down the tune in the first place. if it is because it is trying to make the engine more efficient then that is understand able however i have not noticed a difference in MPG. however if the engine is pulling back spark timing because of knock or some other factor and we just keep resetting this could potentially be shortening the life of our engines. Makes me wonder if the car knows something we don't.

Joshspony

In my case the adaptive learning has weakened the tune, but in way of MPG. It has been a few months since I loaded the tune last. I was getting between 23-24 mpg, now I reset the adaptive learning and reloaded the same tune, it drives a lot stronger. Using about the same driving habits I am only getting 19-20 mpg.

AMChrisRose

Automatic transmission adaptive learning isn't going to be functional in our tunes, so that's not the culprit.

Regular "adaptive learning" will not affect WOT, only part throttle and idle operation. This adaptive learning also only affects fueling based off of feedback from the o2 sensors. Possible causes: developing vacuum leak or exhaust leak, bad o2 sensor (front/upstream).

Other than that, there's no way a tune will "lost potency over time". Except in your head!

With all that being said... I reset the battery in my 07 GT and it feels like a rocket ship all of the sudden. However, coast-down/sweep/step tests on the dyno that I've done before show absolutely no change, whatsoever.

There's a few air tables that have to be filled in, as well as a few spark habits that have to be "learned". These could easily be responsible for the "difference" that makes it feel more powerful. HOWEVER, this is not considered "adaptive learning".

Nuke

But would these be significant enough, while "relearning", to result in REAL and noticeable performance improvement? Maybe we need a subroutine that constantly "empties" these tables and habits...

X3xMONGOOSEx3X

Okay so our tuned cars develop some sort of virus, and a reflash kills it?

Whitehorse10

There's nothing wrong with your tunes, there's nothing wrong with your adaptive learning and there's nothing wrong with your car. It only leaves one option.

Tune losing it's aggressiveness, sheesh.

Whitehorse10

X3xMONGOOSEx3X

http://www.youtube.com/watch?v=eHiX0FZcjkA

AMChrisRose

That's the $1,000,000 question.

I don't think it's responsible for it, but then I reset my battery and feel the same thing. It could be in my head. We're not talking about a night/day difference.

Cars develop lots of things over time that feel like power issues. Creaks, lower/higher tire pressure... when you hit a real good pothole, your car almost feels like it's mad at you. I think this is 90% psychological, 10% KAM memory.

Nuke

Agreed.

You left out how nice it rides after you wash it. And we know that THAT'S not psychological... LOL!