Hello everyone, I'm concerned with my 2005 Xfire, I've had it for about a month and half now, purchased at 118k miles. Its been running , but lately I'm feeling as if I'm not getting enough power when I accelerate. Just recently the check engine light came on, and later in the day it had went off and hasn't returned as of yet. Im going to take it to the dealership under the powertrain warranty I purchased from them, however I want the opinion and advice from other Xfire enthusiasts. If anyone has any suggestions or ideas , or a.y questions for me, please feel free. Any help is greatly welcomed and thanks in advance.