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Diconnecting Battery w/ Custom Tune Installed

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Old 11-17-2015, 08:37 PM   #1
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Default Diconnecting Battery w/ Custom Tune Installed

Prior to disconnecting the battery, should you put the stock tune back in prior to disconnecting the battery? Or does it not matter? Bought a new battery, figured I better be sure before I disconnect the battery.
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Old 11-17-2015, 09:11 PM   #2
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I'd do it just to be safe, but i dont think it matters as it's stored in the PCM
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Old 11-17-2015, 09:41 PM   #3
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I have disconnected my battery with the Level 2 Tow loaded and it is still good afterwards. Don't think it will be an issue.
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Old 11-18-2015, 05:27 AM   #4
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It's not an issue to disconnect a battery with a custom tune installed. As mentioned, it's stored in the PCM, so it acts just like the factory tune would. Since we'd do nothing different with a factory tune when changing the battery, no need to do anything different with a custom tune.
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Old 11-18-2015, 05:41 AM   #5
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Had battery changed with custom MPT tune installed with no issues at all
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Old 11-18-2015, 06:30 AM   #6
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Quote:
Originally Posted by BlueRacer View Post
Prior to disconnecting the battery, should you put the stock tune back in prior to disconnecting the battery? Or does it not matter? Bought a new battery, figured I better be sure before I disconnect the battery.
No Need to....
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Old 11-18-2015, 08:17 AM   #7
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Thanks for the info. Much appreciated
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Old 11-18-2015, 12:34 PM   #8
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Yep...
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Old 11-21-2015, 03:24 PM   #9
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I had a custom tune installed, but when I was changing it back to the stock tune, something happened and now when you insert the key and turn it to the "ON" position, or the position before actually starting the vehicle, it will just keep cranking, but not start or turn over. Any help or advice will be greatly appreciated and welcomed. Thank you in advance.
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Old 11-21-2015, 03:26 PM   #10
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it also doesn't stop "cranking" until I remove the key completely.
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