Can the exhaust pipe on the accelerator of Excelle 04 not be used?

When the engine is running, engine exhaust gas is generated by engine oil. If the exhaust pipe is unplugged and discharged directly into the atmosphere without burning, it will pollute the environment, and dust will be easily sucked into the engine, and the throttle valve and idle valve will be dirtier, which will be bad for the engine, affect the power and produce noise.

Many vehicles often fail the annual inspection because of unqualified exhaust gas. However, some car owners unplug the exhaust pipe when checking the exhaust gas, so that the exhaust gas can be directly discharged from the engine position without passing through the exhaust pipe. This method sometimes really helps to pass the exhaust gas detection. Most of the unqualified exhaust gas tests are related to oil products or three-way catalytic converters. The correct way is to use high-quality gasoline and clean the three-way catalytic converter before vehicle inspection.