What are the causes of insufficient car power?

[LeNora]

Car power insufficiency can be attributed to: 1. Dirty throttle valve; 2. Substandard gasoline quality; 3. Abnormal signals from pressure sensors or throttle position sensors; 4. Low fuel pressure, clogged fuel injectors or fuel filters; 5. Intake manifold leakage leading to overly lean air-fuel mixture; 6. Incorrect ignition timing due to abnormal sensor signals, resulting in delayed ignition; 7. Weak spark caused by faulty spark plugs, igniters or high-voltage wires; 8. Oxygen sensor malfunction; 9. Poor operation of the exhaust gas recirculation system; 10. Clogged exhaust pipe; 11. Low cylinder pressure; 12. Turbocharging system failure.