Luz Check Engine

Good to all. I tell you my concern: I have a automatic 95 uun action. The issue is that when I leave it under the sun in the morning with everything closed, the car is heated inside as is normal, but when I get to give key to start, the light of the check does not turn off, and therefore does not turn on. Until a long time he turns off and already lights the vehicle. I already put the new Main relay, but this detail persists.

Someone will know where the problem is, to help me.


Thank you