Does tuning erase if you disconnect battery?

[TRMI8TR]

Like the tittle says. My mechanic disconnected my battery to work on my car for about 1 1/2 days. It has the dyno tuning and SCT programing. The car is running fine, I'm just wondering.
Thanks,

 

[evolve]

Nope.

 

[TRMI8TR]

^^^Thanks buddy.

 

[oldmodman]

As far as I remember only the readiness codes go away. And they reset after you drive it for a while anyway.

 

[TRMI8TR]

As far as I remember only the readiness codes go away. And they reset after you drive it for a while anyway.

What do you mean by "readiness"? I wonder if that's the reason why when I picked her up it was idling over 1k RPMs every time I stopped at red lights. I thought maybe they missed with the timing or something. But after about 3 miles I stopped at a gas station to put gas and when I turned her back on it was back to normal, at around 750 rpm. Like you said, maybe it reset.

Thanks,

 

[Rich'sTRsvt]

When the battery is disconnected for some time the computer has to relearn the idling parameters.

 

[Jimmysidecarr]

When the battery is disconnected for some time the computer has to relearn the idling parameters.

Ding! We have a winner! That is correct sir!

The tune stays, but any learned strategies will be lost and immediately start relearning on start up. Most common and most noticeable is idle.

 

[GTpower01]

+1 what he said

:lol:

 

[TRMI8TR]

Thank you so much for your input guys. Yeah car is back to normal.