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I AM GETTING A OBD CODE ERROR FOR MY 2000 NISSAN QUEST , PO141 AND PO325 ??? HOW DO I FIX IT..
not easy, it's under intake manifold between the heads. Have to take off plenum, water bypass pipes. it's the only electrical wire on the top of the block!
The knock sensor on a 1998 Nissan Quest is also located under intake manifold and yes alot of work but can be done in a day. 120 dollar part and 500 labor at garage but for u at home mechanics just a simple side project.
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.
Never mind, I got my answer.
The knock sensor sub-harness connector is located on the passenger side of the engine compartment next to the intake manifold. Must be checked by observing voltage fluctuations with a voltmeter.
yes
The knock sensor is located below the intake manifold
The knock sensor is located below the intake manifold
With mucho effort, that's how. The sensor is behind the intake manifold, throttle body ect, all of which must be removed. Labor alone will be 5-6 hundred , knock sensor another 150 or so. Good luck.
on a 2001, with the 3.3, the knock sensor is under the water crossover pipes, which are under the intake manifold. Pain to change. Take off plenum, intake manifold and there it is, on top of the block between the heads.
You can find a 1996 Nissan Pathfinder knock sensor picture in most auto repair manuals. Most Nissan dealerships repair centers will provide you with a picture of the sensor.