What Causes the MG5 to Display an Engine Emission Fault?

[DelElliott]

Here are the specific reasons why the MG5 displays an engine emission fault: Sensor Malfunction: Includes water temperature, crankshaft position, air flow, intake temperature, oxygen sensors, etc. When these sensors are damaged, have poor contact, or signal interruption, the car's ECU cannot accurately obtain engine data, which will trigger the engine fault light. Poor Maintenance: Poor engine maintenance is the most common cause of the engine fault light turning on. Vehicles have a specific maintenance cycle. If the owner does not follow the schedule and has poor driving habits, it will increase the burden on the engine. Fuel and Oil Quality Issues: This includes both fuel and engine oil. The fuel used in cars usually has a specific grade, and engine oil can be semi-synthetic or fully synthetic. If the owner does not follow the required specifications, long-term use can lead to engine wear.