Famous Check Engine Light Flashing No Codes Ideas. These include intermittent faults that occur infrequently or do not leave a permanent code. Web try tightening your gas cap.

These include intermittent faults that occur infrequently or do not leave a permanent code. Don't just turn it off; Web if your check engine light is on but can’t see any codes, it’s most likely due to having the wrong scanner or one that is incompatible with your vehicle.
