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Old 11-21-2012, 05:19 PM
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Question on unplugging my mini max

I'm going to change my starter on my truck tomorrow. My Haynes manual says to unplug the battery before I start. Do I need to return the truck to stock before unplugging the battery? Same question for when I have a new stereo put in. My stereo guy will unplug the battery when he is installing my new system. I don't have the egr or dpf and I know he will have to move my truck eventually in his shop. If the truck is in the stock setting (for when he unplugs it) I don't want it to run like crap....
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Old 11-21-2012, 06:11 PM
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I haven't done it, but the manual states you can remove the tuner from the port and retain the tune last loaded.. so, no worries.. this is one of the things I like about the h&s and ford handshake: it is actually altering the pcm and tcm, instead of intercepting streaming data and replacing it as it passes.. though the other way of doing it is likely more stealth, the proper way to do it is how h&s does it.. the duracrap doesn't allow this, and the cummins is questionable..

Last edited by drewactual; 11-21-2012 at 06:15 PM.
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Old 11-21-2012, 06:40 PM
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You can unplug batteries all you want. It won't affect the tune. You can unplug the mini maxx and it will still run, you just can't switch tunes on the fly obviously. So no you do not have to return to stock and you don't need to worry about the tuner at all.
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Old 11-21-2012, 11:55 PM
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Awesome, thanks guys!


Also does it matter what battery to hook the amp for the stereo up to, the pass or drivers side??
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Old 11-22-2012, 12:00 AM
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Also, do I have to disconnect just one neg or do I have to do both? Not sure with two and I'm still learning new stuff almost daily about these things....
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Old 11-22-2012, 05:07 AM
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No don't matter what side to hook up amp to and you need to unplug both batteries. Just unplug both negatives
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Old 11-22-2012, 06:55 AM
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Lifesavers here
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Old 11-22-2012, 07:08 AM
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That's what forums are for!


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