I heard the service guys at a Toyota dealership here in Houston saying at around 3500 miles on some of the 2003 V8 Tundras, the "Check Engine" light will come on, and stay on until the fuel filler neck gets replaced by warranty. Has anyone had this problem on their '03? I'm at 6,000 miles and my light hasn't come on...yet. The problem is a pinhole sized opening in the neck somewhere causing the pressure to drop and the ECM throws a code. I'm curious to see if anyone has has this problem.