What is the cause of Roewe 350 engine fault light?

Roewe 350 engine fault light is on for the following reasons: 1, engine electrical fault: this kind of fault includes the damage of some sensors such as air flow meter, throttle idling motor, oxygen sensor, ignition coil, spark plug, water temperature sensor, crankshaft position sensor or camshaft position sensor. In addition, it also includes some control units or actuators such as engine computer, ignition computer, fuel pump and camshaft adjusting solenoid valve. In addition to these electrical components, wires between these components may also cause failures. 2. Mechanical failure of the engine: For example, when the fuel quality changes, some fuels with more additives are used, or the intake port, throttle valve or spark plug are covered with carbon deposits, and the air leakage of the intake port is lower than the standard value, corresponding fault codes will also be generated. In severe cases, the instrument will also report the engine fault light.