I have a 2007 Ultra Classic which I put vance and hines true duals on with python mufflers. I bought a Fi2000 Cobra tuner and had it put on. The tuner was bad. I unplug and went back to not using it. The tuner was repaired and I am Leary of putting it back on. Recently I rode and my engine light came on when I accelerated up to 60 mph and went off when I decelerated, What can I do or check? And should I put the Fi2000 Back on?