What other sensors should you replace after the knock sensor?

After replacing the knock sensor, it's advisable to inspect and potentially replace the oxygen sensors, as they work in conjunction with engine performance and fuel efficiency. Additionally, consider checking the mass airflow sensor (MAF) and the throttle position sensor (TPS) for any signs of wear or malfunction, as these can also affect engine performance. Regular maintenance of these sensors can help ensure optimal engine operation and prevent future issues.