There is something wrong with the throttle of the Porsche Cayenne. Will the car stall?

Precursor of throttle replacement

1, the engine idle speed is unstable, the high idle speed drops discontinuously, and it is difficult to start the engine, especially the cold start;

2, the engine idle speed instability or no idle speed;

3. The engine is difficult to start;

4. Insufficient engine power, poor acceleration performance and unstable operation;

5. The exhaust pipe of the car emits black smoke, which increases fuel consumption.