Does a faulty oxygen sensor significantly affect the car's power?

[DelPiper]

A faulty oxygen sensor has a significant impact on the car's power because the oxygen sensor is a crucial component that is related to the air-fuel ratio of the car's engine. If the oxygen sensor is damaged, it will cause the engine's air-fuel ratio to be inaccurate, thereby affecting the engine's performance. Oxygen sensors are installed on the car's exhaust pipe, specifically near the exhaust manifold, close to the three-way catalytic converter. As a key component of the electronic fuel injection system, the oxygen sensor plays a vital role in ensuring the engine's normal operation and effective control of exhaust emissions. Once the oxygen sensor or its connecting circuit fails, it not only leads to excessive emissions but also worsens the engine's operating conditions, resulting in symptoms such as stalling at idle, irregular engine operation, and reduced power.