Le Chi 1.2 is boring, but there is no shortage of cylinders. What happened?

Hello, there are several fault points to consider: if there is a fault light on, use a computer to read the fault code and find the fault component for replacement. If there is no fault code, it is considered that the exhaust three-way catalyst is blocked; The air inlet filter is too dirty; Fuel pump failure, voltage regulator failure; The intake pipe leaks vacuum; Ignition system failure; Insufficient cylinder pressure; Abnormal throttle position sensor signal; Too much oil. If there is something wrong with your car, ask the car mechanic. 4S shop professional technician, 10 minutes to solve.