hypertech programmer/ problem with engine

GMC
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JRO81
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i recently changed the setting on my engine computer using a hypertech programmer. I forgot to unplug the hypertech programmer from the diagnostic port and started my engine while the programmer was still attached to the port. Prior to the problem, the programmer read low battery, you are unable to make changes. I wonder if it is just a battery problem. I have been unable to start my engine.
Jan 30, 2006 at 1:41 AM
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2CARPRO JACK
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battery must be very close to 12 volts for everything to work
Jan 31, 2006 at 5:12 PM