[CHROMEDCRUISER]

I've had my 2003 TE for about 18 months now. At about 3 months, the check engine light went off, the dealer looked at it, said it was nothing, and turned off the light. About 3 weeks ago, it went off again as I was driving home. Took it to the dealer, they said it was the gascap that was loose. I've heard talk about this, but I have since day 1 made sure the gascap is locked down tight. Yesterday, the check engine light came on as soon as I started the car. I tightened down the gascap, the light stayed on, I opened the gascap and tightened it down again, still on. What do ya'll think? It runs fine, smells fine, and sounds fine. Bad sensor? Isn't there a three strikes and your out lemon law that requires replacement of the part or the car? Taking it to the dealer on Monday, what should I do?