This system includes several components, including the oxygen sensor, catalytic converter, and evaporative emission control system. When these or other parts of the system malfunction, the ECM will turn on the emission light.
The emission control system is designed to reduce the amount of pollutants released into the atmosphere from the vehicle's exhaust. When this system is not functioning correctly, the vehicle can release excessive pollutants, leading to environmental damage and potential health issues.
It is important to address the issue as soon as possible when the emission light comes on. This light may indicate a minor issue that can be quickly resolved, or it could signify a more serious problem.
If you are experiencing the emission light coming on in your 2000 Ford Focus, you should take it to a qualified mechanic or dealership to have the emission control system diagnosed and serviced as needed.
