As some of you might know I picked up I nice little tool. Well tonight it picked up a drop in voltage in the ECU just as I went to stop in the driveway tonight. Now I haven't set this part of this tool yet but it said "warning ECU voltage low average voltage 15.4 low voltage 14.2" is this normal or not? This is the first time in the week I've had this thing pluged in that it's said this. No CEL is showing with this so I'd like to know from some of the more experienced people do I need to be concerned?
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