How about Dongfeng Nissan's new sunshine idling and low-love flameout?

When the engine turns off at idle speed, the idle speed should be adjusted according to the actual situation. After adjustment, if the fault disappears, it is improper adjustment of the idle screw. After adjustment, if the fault can't disappear, you can turn on the throttle and let the engine continue to run. Check the carburetor and intake manifold gasket for air leakage with cotton yarn or paper. If there is no air leakage, you can remove the idle metering hole for inspection, blow through the idle oil circuit at the same time, and then reassemble the test. If the fault disappears, the idle metering hole and idle oil circuit are blocked. For carburetor with idle stop valve, check whether the electromagnetic coil circuit of idle stop valve is normal. If the idle fuel-saving metering hole is blocked due to abnormal electromagnetic coil circuit, repair the idle stop valve.