What caused the Great Wall m4 to accelerate its breathing?

The main causes of engine "wheezing" failure during automatic starting or acceleration are:

1, the ignition advance angle is incorrect.

2. The fuel pressure is too low.

3. The fuel quality is not good.

4. Air leakage in the air intake system.

5. The throttle position sensor or air flow meter is faulty.

6. The fuel injector doesn't work well.

7. The exhaust gas recirculation system is not working properly.