I have an intermittent prblem with mr EPC light. Every couple of weeks it turns on when I turn on my car. There is less power. If I turn of my car and turn it back on the problem is gone. I have tried searching but could not find my exact issue. I have no other lights turning on.

 

i tried changing the mass air flow sensor, still same problem. Anyone have a similar problem?

 

Now that it is summer it has not happened at all. Before the light only turned on in the morning. Does anyone have any idea what could be wrong? I dread the winter