BYD s6 sometimes can't refuel and is powerless.

One is caused by carbon deposition.

There are three reasons for the car's weak acceleration. The first one is the carbon deposit in the valve, idling motor, intake combustion chamber and spark plug, so there will be a considerable fire incident when the car is idling.

Second, driving on crowded roads.

Driving a car on a congested road for a long time, accelerating and decelerating for a while, will eventually cause the car to feel weak when driving again.

Third, the oil quality is poor.

A very important reason for the weak acceleration of the car is that the poor quality of the engine oil used will affect the gasoline filter and oil circuit.

It may lead to poor oil supply and weak acceleration; It will also affect the service life of the three-way catalytic converter in the exhaust system. If the three-way catalytic converter is blocked, it will directly affect the acceleration of the vehicle, and will also lead to an increase in fuel consumption, resulting in the phenomenon of weak acceleration.

solution

Check the intake pressure sensor for contamination. It is the main parameter of the fuel injection control of the driving computer, and the other parameter is the engine speed. Engine speed and intake pressure determine the main fuel injection quantity, and other sensors are used as the correction gas path: throttle valve and idle valve.

The possibility of problems in the air filter gas path is much smaller than that in the oil path. Specific measures: clean the vacuum tube (seriously polluted, which will affect the intake pressure sensor), clean the idle valve (clean the air circuit) and the throttle valve (clean the air circuit). If not, then check whether the output of intake pressure sensor, speed sensor and oil pressure regulator is stable.