What does the 2014 ford focus check engine light mean?

A common reason for the Ford Focus check engine light to turn on in is a loose gas cap. If the seal is broken due to a loose or a broken gas cap then the leaking vapors might cause the check engine light to turn on. If the gas cap is closed properly and is not damaged, then, the next thing to check is the engine oil, because low engine oil can also cause the light to come on. If the issue persists then You should immediately get Your car inspected, as it might be an indicator of a more serious problem such as damaged spark plugs, wires, or coils, issues with the thermostat, malfunctioning catalytic converter, faulty mass airflow sensor, malfunctioning oxygen sensor, or a faulty exhaust gas re-circulation valve. In any case, it is preferable to head over to an auto mechanic and get it fixed to avoid further damage.