I installed the TV II with a set of Big Bear Choppers Venom pipes and a K-N stage 1 air. For the most part, I'm happy with it but at full throttle, the engine light comes on and I'm not sure why, I called Terry Comp. and they said to check the TPS sensor plug, maybe a pin is bent over. When I changed the pipes, the rear O2 sensor wires pulled out of the plug, maybe that has something to do with it, I looked at the front one and put it back together, I am hoping I got it right. After about 400 miles of riding, I pulled the plugs and the front is nice and tan while the rear is a little on the white side. I'm thinking I need to go ahead and replace the O2 and see if I managed to put the wires back into plug right, otherwise it runs great. Any ideas on the engine light ???? Checking codes on a 07 train ????