Can you clean O2 sensor for 04 Cadillac CTS?

Cleaning the O2 sensor on a 2004 Cadillac CTS is not typically recommended, as it can be delicate and easily damaged. If the sensor is contaminated, it's often more effective to replace it rather than attempt to clean it. Cleaning may not restore proper functionality, and using harsh chemicals can lead to further issues. If you're experiencing problems, consider diagnosing the issue and replacing the sensor if necessary.