What if the son of the East can't speed up?
First, check the oil pressure of the oil pump, and check that it is between 300 and 350.
Turn on the ignition switch (do not start the engine) to make the electric fuel pump run. At this time, the fuel pressure should meet the technical requirements, generally swinging around 0.3MPa.
Clamp the oil return hose. At this time, the reading of the oil pressure gauge is the maximum oil supply pressure of the oil pump, which should meet the technical requirements of the vehicle type, generally 2~3 times of the working oil pressure, that is, 0.5~0.75MPa.
Loosen the tubing clamp, restore the static oil pressure, remove the jumper of the oil pump relay, stop the oil pump operation, and wait for 5 minutes. At this time, the reading of the oil pressure gauge is the maintenance pressure of the fuel supply system, which should meet the technical requirements of the vehicle type, and generally should reach about 340KPa.
When the engine is idling, the reading of the oil pressure gauge is the idling working pressure of the fuel supply system, which is generally 0.25MPa or meets the technical requirements of the vehicle.
When testing the idle working pressure, when unplugging the vacuum tube on the fuel pressure regulator, the oil pressure should rise to 0.3MPa, otherwise the oil pressure regulator should be replaced.
When the throttle valve is fully open, the reading of the oil pressure gauge is the rapidly accelerating oil pressure of the fuel supply system. Under normal circumstances, when the throttle accelerates rapidly, the oil pressure should rise rapidly from 0.25MPa at idle speed to 0.3MPa.
Secondly, check the spark plug to see the combustion situation, the steam filter to see if it is blocked and the throttle valve is clean.
If not, please ask questions, if satisfied, please adopt, thank you.