What are the reasons for slow throttle response?

1 Answers
WilliamAnn
07/29/25 6:01pm
The reasons for slow throttle response are: 1. Poor fuel quality; 2. Blockage in the intake and exhaust system; 3. Abnormal throttle pedal signal; 4. Fuel injection or ignition failure. The working principle of the throttle is: when the throttle pedal is pressed, it directly controls the throttle valve, which increases the throttle opening, allowing more air to enter the engine. At this point, the ECU commands the fuel injection system to inject more fuel, increasing the engine speed and thus accelerating the vehicle. The solutions for slow throttle response are: 1. Check the fuel pressure and cleanliness, replace the fuel filter; 2. Inspect the ignition system, cylinder wires, and spark plugs; 3. Check the cylinder pressure to see if the engine is misfiring; 4. Inspect the intake and exhaust pipes for blockages; 5. Verify the ignition timing is correct, check the throttle position sensor and idle motor; 6. Use higher quality gasoline.
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