Yes indeed.
You need to find the wire that runs from the ECM to the sensor. Many times the wiring diagrams are off (pin numbers) or the wire colors do not match the diagrams. So unless you can see the knock sensor and trace back a wire, you will need to check the continuity of the "suspect" wire to make sure you have the right wire. You will likely need to pull up a wiring diagram from a web site to assist.
(For instance a Quest or Villager wire number is actually 63 at the ECM, but the diagram for the Quest says 64. The right wire is white, but it looks yellow from age. NCA means a noise suppression gray tape wrapped around bare wire. The book says it is black/red wire. The engine compartment sub harness is not the one in the book - so the pin numbers are useless. The pigtail connector from the sensor is located behind the manifold cover and can not be touched or seen by a human, etc.)
Then cut the wire and connect it to a new Knock Sensor ($60 - $200). Mount the new knock sensor any old place as long as it has a good ground. Many sensors bolt thru the middle (donut) and the bolt is the ground.
The reason you need a knock sensor is that it is an active piezoelectric device. Meaning it sends a voltage to the engine computer. No voltage = bad sensor = warning light.
yes
The Nissan gurus put the knock sensor on the car for a reason. Unfortunately it uses the engine block for the ground and only one wire of the two in the harness is live. The knock sensor is not the easiest piece of equipment to get to so many people either live with the knock sensor being bad or bypass it. Once you get to the sensor, you can clean the engine block and the bottom of the sensor and reinstall. That cures the problem in many cases. The most effective safe way to fix the knock sensor is to replace it. If you want to take your chances you can research knock sensor bypass in your favorite search engine. There are a lot of articles with step by step directions so I doubt the procedure needs to be repeated here.
You could do it with a resistor but this is a very bad idea as that sensor is there to protect the engine from catastrophic damage. Source a replacement from ebay
It is definitely not a good idea to bypass the sensor. If you have the 22re engine, then replacing the sensor or the wiring is trivial. Not so on the 3vze. The sensor is located under the upper and lower intake. So, for a quick bypass you can buy a new sensor and attach it to one of the engine mounts (there should be one on the drivers side, a couple of inches from the wiring harness). You can either drill through the mount, or bolt the sensor inside the loop of the hook. Note, this is a very temporary "fix". In this location, the sensor will not be able to perform its job. Be warned!
LS does not have a knock sensor. GSR does have a knock sensor
I have a 240 and with the knock sensor unplugged it will still start so I would have to say no.
Do you mean the knock sensor? It's a device that detects engine knock so that the computer can retard the timing. If the knock sensor isn't functioning, it could be a connector or the sensor.
The knock sensor detects spark knock or ping.
you will have a knock sensor code and the car will run slugish. when a knock sesor code is set its retards the timing so the engine will not detonate. the easyiest way to fix it is relocating the sensor.
that the knock sensor does
Where is the knock sensor for a 99 pathfinder
You cannot bypass this sensor.