Hyundai Repair Questions? Ask a Mechanic for Answers ASAP
Hello and thank you for your question,The check engine light comes on when the computer system sees a system fault and when this happens the computer will set and store a fault code and or codes. If the gauge read empty that very likely triggered the light because the gauge hung up. Since the car is running fine, I would start with removing the negative battery cable which will clear the light and the code and then drive it and see if the light returns. If it dose the a code scan will need to be performed to retrieve the fault code and that can be addressed from there. If the light remains off then no further action is needs and you good to go.