[Dukenrock]

I have a 2004 1/2 dually with the new banks Kit. I was picking up my boat from the amrine to put away for the season. (12,000lb) and after traveling down the highway for about an hour noticed my check engine light on. I immediately checked my settings on the Banks switch and realized I had it set to 6. I remember them telling me not to tow with it set to 6 so I switched it down to 2. I pulled over and everything looked OK under the hood. (Guess I was expecting to see some melted parts) Finished my 2 hour drive. Engine Light stayed on for another day and finally shut off on it's own. Did I do any major damage? This was o couple of weeks ago and the truck is running fine. Also, I usually keep it on 6 when I'm not towing. Like the speed!