Many many things about car repair
When your car is running correctly, your engine light should illuminate only when you switch on your ignition. An engine light that remains illuminated or goes on without warning while you are driving usually indicates an issue with your engine management system. Get in to a certified technician as soon as possible. Get your check engine light checked if it abruptly starts flashing while you are driving. Experts advise you to reduce speed immediately until your check engine light stops flashing and remains lit continously.