How do you replace the knock sensors on a 1996 Toyota Avalon?

To replace the knock sensors on a 1996 Toyota Avalon, first disconnect the battery to ensure safety. Remove the intake manifold to access the sensors located on the engine block. Disconnect the electrical connectors from the old sensors, unscrew them, and install the new sensors. Finally, reassemble the intake manifold, reconnect the battery, and start the engine to check for proper operation.