1. First check the fuel pump and replace the fuel filter element.
2. Then turn off the engine and step on the accelerator to see if the throttle cable works. If there is no problem, it is a problem with the high voltage wire and ignition coil.
3. Then, due to the blockage of the car's oil system, when the injector is clogged, the fuel cannot be fully transported, so it cannot be completely burned in the engine cylinder.
4. Finally, due to exhaust system failure, the three-way catalytic converter or exhaust pipe is blocked, which may also lead to the problem that the car cannot increase the throttle.