How do you replace knock sensor of 1998 Nissan Quest?

To replace the knock sensor on a 1998 Nissan Quest, start by disconnecting the negative battery terminal to ensure safety. Remove the intake manifold to access the knock sensor, which is located on the engine block. Disconnect the wiring harness from the old sensor, unscrew it, and then install the new sensor by reversing the process. Finally, reconnect the battery and check for any error codes before starting the engine.