Where is the knock sensor on a Infiniti qx4 98?

On a 1998 Infiniti QX4, the knock sensor is typically located on the engine block, near the intake manifold. Specifically, it can often be found on the driver's side, beneath the intake manifold, attached to the engine block. Accessing it may require removing the intake manifold for easier visibility and reach. Always refer to a service manual for detailed instructions specific to your vehicle.