i just bought my first supra, and its a beast, lol, but the check engine light comes on when ive been in fifth for a few minutes and stays on untill i turn it off and go into fifth again, ive driven for a long time under 5th and it never comes on untill ive been crusing in fifth. It would be great if you could send me some ideas what could be wong, and also could you point me to a link for the scanner i need to get my engines codes..