Knock Sensor on a '98 Pathfinder - Nissan Forum

 
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post #1 of 5 Old May 21st, 2009, 02:51 PM Thread Starter
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Knock Sensor on a '98 Pathfinder

Where is the knock sensor located on a 1998 Pathfinder?

I believe that I need to replace it.

Can I test the current one for functionality?

Are there any requirments to simply replacing one?

Thanks,

LT
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post #2 of 5 Old May 23rd, 2009, 02:27 PM
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hi i have the same error too, it is under the manifold, doesn't look too easy or i would have replace it myself. There should be a engine control manual here that you can download.
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post #3 of 5 Old May 26th, 2009, 02:21 PM
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I wouldn't worry about replacing the sensor too much. From everything that I have read on the forums and elsewhere it is not a major code and typically the error is not due to the sensor but something else. Possible culprits are timing, o2 sensors, spark plugs/distributor.... Did you get the knock code along with another code, or was it just there on it's own?

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post #4 of 5 Old May 26th, 2009, 07:10 PM Thread Starter
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The EVAP code came up as well.

My first thought was O2 sensors but in the past, with other vehicles, the code stated O2 bank 1 or bank 2 for a faulty oxygen sensor.

The truck is in need of the tailp pipe and the resonator/ muffler before the tail pipe. I have a thought that these caused the codes.

Are there codes for faulty O2 sensors?

Thanks
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post #5 of 5 Old May 27th, 2009, 02:08 PM
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EVAP could definitely affect the knock sensor. All the sensor does is detect the knock in the engine and actively adjust timing to correct the knock. If the knock is too extreme for the sensor to correct it throws a code. There are specific codes for each of the 4 o2 sensors, the most common of which is P0158.

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