My engine light always come on after driving about 300 highway miles. After driving in town a day or two it goes back out. I got diagnostic codes, it listed so many and wasn't giving a clear answer. My car be driving fine except for a few minor problems I am aware what the problems is. I feel uneasy when I drive out of town.
Why would my engine light come on after 300 highway miles. on 2003 Toyota Camry