Great Wall M4: What's the matter?

1, poor fuel quality; 2. The engine intake pipe is broken; 3, the ignition time is wrong; 4, fuel injection system failure; 5. The throttle position sensor is faulty; 6, three-way catalyst failure; 7. Spark plug failure; 8. The transmitting computer is not responding.

The weak solution is: 1, replace the engine intake pipe; 2. Adjust the ignition time; 3. Replace the fuel injection system; 4. Replace the throttle position sensor; 5. Check the three-way catalytic converter; 6. Replace the fuel with high label; 7. Replace the spark plug; 8. Replace the transmission computer.