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Re: need to find location knock sensor for replace
I know that the knock sensor for a 1998 Quest with a 3.0 is located on the passenger side of the engine compartment under the intake manifold. You should be able to find the wiring and connector next to the intake manifold. To access the sensor, you have to remove the upper and lower intake manifold. The sensor is on the block between the heads. Hope this helps.
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this isn't a simple repair job, the knock sensor must be replace, I would also make sure that this IS the knock sensor that is the issue here otherwise if you replace and clear the codes the same issue will appear again, sometimes the engine computer will throw a code that is correct but misinterpreted which I believe might be your case,If you have a knock sensor code on any Nissan (in my experience) replacing the knock sensor will not fix it. The knock sensor detects unwanted engine vibrations, such as miss fires. So if you have a knock sensor code first check your spark plugs, are they in proper condition? (if not replace them). Next quest vans are known for clogging fuel injectors so i would recommend running a can of sea foam injector cleaner.
Nathan, 2 Knock's are located under intake manifold.
Check the attached links,
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On both cars the knock sensor is located in the intake valley.
the computer receive signals if engine knocking and adjust the timing till stop.Before replace the sensors make sure the engine have no other misfire ,bad gas or vacuum leak.plug scan tool and read the code.Only circuit problem will be a true knock problem. Inspect all wire connectors before start taking a part.
Well the knock sensor is located under the lower intake manifold, between the two cylinder banks in the valley. It's about a 3 hour job for an experienced technician, but I have to ask why you want to replace it.
If you have a knock sensor code on any Nissan replacing the knock sensor will not fix it. The knock sensor detects unwanted engine vibrations,such as spark knock. So if you have a knock sensor code first check your spark plugs, are they ok? (if not replace them). Next Quest vans are known for clogging fuel injectors so I'd recommend running a can of sea foam injector cleaner or going to your local shop and having a professional injector cleaner run through your car.
If problems still persist after having good plugs and running an injector cleaner through, other things to look for would be intake leaks (vacuum leaks), bad mass airflow sensor or a jumped timing belt, which you will need an experienced Technician to check
The tcs light will come on whenever the engine light is on, this is because the tcs cant operate correctly when engine is not running good so its shut down by the computer, the code if the only code means there a problem with the knock sensor, you will need to check the connection and make sure the wire is good and if it is then you will need to replace the knock sensor, heres a diagram to help you locate the knock sensor good luck, hope this helps,
this problem is very seldom the knock sensor, it can be the harness connector at the sensor or the engine has excessive knock which will set a code, u did not mention the particular code so hard to say, the location of the knock sensor is the lower section of the engine block, it is screwed into what would normally be a block drain plug, if u replace it u need to torque it to whatever the factory spec is or it can cause it throw another code..
IT IS located under intake in valley of engine. you have two there so best to replace both at same time. will have to remove intake to get to them. nothing bad is gonna happen if you drive a while it monitors two knock sensors so will still read the other one.
P0330 Knock Sensor 2 Circuit Malfunction (Bank 2)
Check the resistance of the knock sensor (compare it to factory specs)
The knock sensor is faulty and needs to be replaced.
Check for broken/frayed wires leading to the sensor.
There is a wiring short/fault in the knock sensor circuit