Why does the throttle not respond when the engine is warm but works when cold?

[MackenzieRose]

The reason why the throttle does not respond when the engine is warm but works when cold is due to a malfunction in the car's electronic throttle system. Below is an introduction to the related content: 1. Solution: If the car's electronic throttle is malfunctioning, it is necessary to promptly visit the car's 4S store or a repair shop to inspect and repair the electronic throttle, which can resolve the issue of the throttle not responding when the engine is warm. 2. Sensor reason: If the throttle position sensor is too dirty or the voltage is unbalanced, it can lead to electronic throttle failure, resulting in the situation where the throttle is pressed to the floor but the speed does not increase. If the fault is not related to the electronic throttle, then the issue may lie in the engine's intake, fuel system, or ignition system. Any component failure or abnormality in one of these three systems could cause the situation where the car's throttle is pressed to the floor but the RPM does not increase.