Dongfeng Xiaokang K07 has poor power. The throttle, spark plug and cylinder line have all been changed, and the cylinder has been repaired. The power is still very poor. What is the reason?

This situation can be analyzed from several aspects: 1. Whether there is a problem with the circuit, whether the sensors such as the intake manifold pressure sensor are aging, and whether the intake pressure is sufficient. 2. Whether the intake system is normal, and whether the intake pressure, throttle valve and three-way catalysis are normal. 3 Whether the oil pressure of the oil pump is sufficient, whether the oil circuit is unblocked and whether the oil nozzle is blocked. 4. Whether the automobile computer control unit is normal. It is suggested to find the problems and eliminate the faults from the above aspects.