I've been a member here for just over 6 years, and read lots and lots of your posts, learning about my 2007 SXT quite a bit along the way. I just came home a couple of weeks ago after being gone for quite a few months, and had a check engine light come on. This is pretty normal in the cooler months for my car, but it is often intermittent and usually has some code associated with it. I just failed my emissions test, but it gave no code to the mechanics, nor does the dash show any stored codes. I have just over 161k miles on what has otherwise been a trouble free vehicle. For the last few days it seems that I am not getting my usual high gas mileage, so I'm not sure if it is a lack of combustion problem leading to the emissions results or if that is a separate issue. I'd just like to have a few ideas to research before I turn it over to the mechanics to tear into tomorrow afternoon. Thanks.