Went out and rode yesterday from 5000-6000ft and the check engine light would come on for a bit then go out by itself. The sled seemed to be running fine all day i did get it to bog a few times while climbing full throttle. I have the Power Addiction 13.1 head on it and left the 60g weights in it that i normally ride in the mountains with. I usually run the 62g in the hills but didn't think it would pull enough r's to hit the limiter with the 60's so i left them in since we are leaving for cooke on Wednesday. I didn't know how to check the engine code until i got back and read the manual and now the code is gone. I read a few posts on here and seen that the code 173-3 exhaust temp sensor is pretty common to go bad on these sleds. Wouldn't it run bad if it was this though? I'm just wandering if i was hitting the limiter without knowing it. I will probably call the dealer tomorrow but wanted to have an idea of whats going on. I need to figure it out before we go to Cooke.