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The same thing was happing to me I was getting terrible gas mileage 26 mpg just could not get it to work right I know it was in closed loop I would hook my laptop up to the thunder max and go for a ride, then I would look at the ride on my desktop. I finally gave up and put the stock ECM in. Now I hope it burns up because I have a 7 year warranty on my bike and when the Harley shop rebuilds my bike I will pay a little out of my pocket and get the bigger engine put in, then I will be cursing. The shop by me is really good about things like that.
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07 Road King
SE/AC
stage 1 down load
harley Race fueler
Corbra Speedster Xtra Longs
RE: Thundermax Problems
