Fukang car 1.4 EFI stopped and slammed on several throttles continuously. When idling, the lowest speed is only 500 rpm, but only once, the engine shakes and returns to normal.

Actually, it's easy to explain After the Bigfoot boom, a large amount of unburned gasoline accumulated in the intake pipe and even the exhaust pipe. The oxygen sensor will report hypoxia, reduce fuel injection, and the idle speed will naturally decrease. When the excess gasoline in the exhaust pipe is exhausted, the idle speed will return to normal.

It is difficult to start a hot car for half an hour, which should be related to the small throttle opening. The initially inhaled air is discharged from the cylinder due to thermal expansion and contraction. The opening is too small, which leads to insufficient air intake when starting, unable to complete the compression explosion process and unable to start the engine. Step on the accelerator a little, the throttle opens, and the air intake is enough, so it can be started.