What is the reason why the exhaust pipe emits white smoke when you step on the accelerator?

The air filter of Pacific automobile network is dirty and the air intake is insufficient; The carburetor is broken, and the EFI vehicle without carburetor may be polluted by the oxygen sensor in the exhaust pipe, which can not provide correct information to the gas distribution computer. Normal white smoke is caused by the high temperature of the exhaust gas from the exhaust pipe and the condensation of water vapor into small water droplets. ?

A component that cannot be ignored in front of the engine is the throttle. Because when you step on the accelerator, the cable will drive the accelerator, that is, the accelerator. There is a position sensor on the throttle. The control unit knows the throttle opening according to the signal of the throttle position sensor, then calculates the corresponding signal voltage, and finally calculates the fuel injection quantity of the vehicle according to the signal pressure.

Therefore, if the throttle position sensor is too dirty or the voltage is unbalanced, the electronic throttle will fail and the speed of the throttle will not go up. If the fault of electronic throttle is eliminated, we should turn our attention to the intake, oil circuit and ignition system of the engine. Just mentioned the throttle position sensor signal.

In fact, it is a member of the air intake system, and the normal operation of the engine needs sufficient air. The air intake system leaks or is blocked, the power drops when the car refuels, the speed can't go up, and the body shakes. (Photo/Text/Photo: Pacific Auto Network Chen Jie 2)