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Old 03-07-2014, 03:52 PM   #7
Boss949
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Join Date: Aug 2013
Location: Trophy Club
Age: 73
Posts: 75
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Originally Posted by my95z28 View Post
Care to expand on these? What are the issues that come up when using a SCT?
I decided to change my tune at the drag strip and I "bricked" the car. Would not load the tune or recover my stock tune. We disconnected the battery for 20 min. and finally able to load the tune.

If I remember correctly; got a "charging system" error. It was at night and I forgot that I had the "auto lamps" on !!!!

I called SCT and spoke to one of the dealer rep technicians. He admitted that there was a problem with the 2011+ 5.0 in the voltage system. A random issue with a voltage surge and they were working on a fix. Still haven't heard about a fix.

His recommendation was the same as Shaun's: Get a Trickle Charger and use this when changing the tune. Never change the tune away from home. All accessories "off" , including "auto lamp".

I purchased a trickle charger from Auto Zone. Actually, I couldn't find a 2 Amp; only a variable (Schumacher 2-10 amp, which works great).

Works great and have not had an issue with loading a tune since.

Hope this helps.
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