Which is safer, throttle, fuel injector or three-way catalytic converter?

If you want to choose one of them, it is recommended to choose a three-way catalyst. Because the three-way catalyst is one of the most important components in the automobile emission control system, it can convert harmful gases into harmless gases, which plays a great role in reducing automobile pollution and emissions. Throttle and fuel nozzle are also important parts of vehicles, but their functions are mainly to control the acceleration and fuel consumption of vehicles, and their influence on pollution emission is relatively small. Therefore, if you want to choose one of them for replacement or installation, it is recommended to give priority to the three-way catalyst.