Where is the harness for the knock sensor on a 97 Nissan Quest?

On a 1997 Nissan Quest, the harness for the knock sensor is typically located on the engine block, near the intake manifold. You may need to remove the intake manifold to access the knock sensor more easily, as it is often positioned underneath it. The wiring harness should be connected to the sensor itself, which is usually found on the side of the engine. Always consult a repair manual for detailed diagrams and procedures specific to your vehicle.