What is the reason for the low idle speed and easy flameout after Fox changed the throttle?

This is a big problem. First of all, change the throttle valve, even if it is original, it should be sent to the power management system for matching. Did you do it? Or management system initialization, otherwise the wrong oil and gas concentration will cause flameout. If the car adapts itself automatically, it must run for three or five hundred kilometers.

In addition, low idle speed means which gears are easy to stall? Fox idling 720-750. If the idle speed of your car is lower than this speed, you must adjust it. What if the idle speed is this speed and you turn off the engine when you start? Then you must start giving some oil, especially when you start going uphill. Fox must use one foot at low idle speed (720 rpm), and it is not easy to turn off the oil when it starts to feed at 1500 rpm.

If the idle speed of the car exceeds 700 rpm and it often turns off by itself, it is necessary to upgrade the PCM drive. If this is a classic blessing, APN is a relatively stable program that will never shut down. Find the 4S that changed your throttle and explain the situation, and they will upgrade you.