Okay so my CEL is always on because there is no EGR valve on my car...but today the CEL was on before 11 in the morning but now it has not been out for the last 180 miles I have traveled today. What do u think is happening???

 

It auto resets after it was on for X amount of time/or X amount of key starts ...
Get a scan gauge II and you can just reset it yourself

 

ok so sometimes its on sometimes its off. One day i can go out and the CEL be on like normal and the next it will stay off so the reset by the keys turn is outta the question unless it happens every two or three times.