any way to lose a tune?
03-23-2006, 10:03 AM
#2
Nope. You can leave the battery disconnected for as long as you want, and the tune will stay. If you are running a closed loop tune, it will lose any learned values (like your fuel trims), but those will be relearned in a short amount of time.
03-23-2006, 10:31 AM
#5
TECH Senior Member
This is also addressed in the forum stickies
https://ls1tech.com/forums/pcm-diagnostics-tuning/287094-read-me-first-tuning-docs-ve-maf-ses-lights-faqs-more-01-31-07-a.html
https://ls1tech.com/forums/pcm-diagnostics-tuning/287094-read-me-first-tuning-docs-ve-maf-ses-lights-faqs-more-01-31-07-a.html
03-23-2006, 11:10 AM
#7
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It's kinda obvious, but I'll point out one way to lose a tune is if the dealer (or some other service tech) reprograms it. In some cases people have lost expensive custom tunes when the dealer erased them without permission.
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03-23-2006, 11:22 AM
#8
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Never take it to a dealer if you have a custom tune, they wil most likly flash it and you will lose everything , it happen to a buddy of mine, 500 bucks down the drain !