i have a 05' mazda3s, has 75,200 miles. the engine light came on, although there is nothing that seems to be wrong. the car is running perfect. when you turn the ignition on and watch the engine light it will flash 7 times. any clue?

 

By the way Heman.............this is a very good OB2 reader that's not real expensive.

http://www.scangauge.com/

Used to have it in my RX8, but daughter has in her 3 now. I've upgraded to something way more expensive in my 8.