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What are the reasons for the throttle not increasing RPM and lack of power?

1 Answers
DeDiana
07/30/25 3:34am
When the throttle is pressed but the RPM does not increase and the car lacks power, the most common causes are a clogged fuel filter or fuel injector, leading to the fuel pump not working properly and insufficient fuel pressure. In such cases, replacing the fuel filter or fuel injector is necessary. Without seeing the actual vehicle, an accurate diagnosis is difficult. Besides the aforementioned reasons, here are some other possible causes: 1. Fault in the clutch system (lubrication issues or wear); 2. Malfunction of the throttle body or stepper motor; 3. Problems with the exhaust system. 4. Short circuits or poor conductivity in the electrical wiring (such as ignition coils, spark plugs, etc.); 5. Use of low-quality or contaminated gasoline.
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