Traditional Culture Encyclopedia - The 24 Solar Terms - What is the reason for the idling fluctuation of the Big Dipper vvt engine?

What is the reason for the idling fluctuation of the Big Dipper vvt engine?

What is the reason for the idling of the Big Dipper vvt engine? The following is my personal opinion:

Reasons for idling fluctuation of the Big Dipper vvt engine;

1. Excessive idle speed is caused by excessive intake air or incorrect engine control signal during idle speed;

2. The reasons for high idle speed are air temperature sensor, coolant temperature sensor, throttle position sensor, air flow meter/intake pressure sensor, switch signal failure and idle speed control valve failure;

3. Throttle body failure, injector failure, vacuum leakage, engine control unit failure or improper matching setting, etc. Million car purchase subsidy