What Causes a Car to Stall When the Throttle is Released?

1 Answers
GageRose
07/25/25 4:50am
Reasons for a vehicle stalling when the throttle is released include: 1. Low fuel pressure, clogged air filter, injector spray leakage or poor atomization, improper idle adjustment, faulty spark plugs, or malfunctioning air flow meter. 2. Internal engine issues such as dripping or clogged fuel injectors, electrical faults, or insufficient fuel injection. 3. Carbon buildup in the throttle body. The throttle is a control device for regulating engine power, part of the vehicle's fuel supply system. By adjusting the pedal input, it controls the throttle opening, regulates air intake, and the engine control unit (ECU) manages fuel quantity, thereby controlling engine speed.
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