Question about 2002 Nissan Xterra

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Nissan xterra knock sensor

I took my xterra to autozone because my check engine light came on and the codes for knock sensor condition and evap small leak detected. where is the sensor located?

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  • Anonymous Jan 30, 2009

    mine has the same codes tripped how did you eliminate the problem judic ???

  • Anonymous Feb 21, 2009

    can you give me a picture of the location of the knock sensor in nissan xterra 2002,,,not the supercharge model,,,thanks

  • Anonymous Apr 21, 2009

    i have a 2002 xterra my engine light came on for knock senser i paid about 600 dollers the the light came back on and said evap leak paid 100 dollers and still is on so i wouldent wast the money for a knock senser cause its most likely not the problem

  • terriham37
    terriham37 Sep 25, 2012

    im having the same problem as we speak

  • Anonymous Mar 16, 2014

    2003 nissan xterra o2 sensor

  • Anonymous Mar 17, 2014

    where is the speed sensor located in my 2001 nissan xterra



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It's the valley of the engine underneath the intake manifold. It's about an $800 job because the top of the engine has to come off. However, unless you have a supercharged xterra it shouldn't effect performance. Also, the knock sensor will not trip the check engine light, as it does not indicate a primary problem, so if your light is on you should have another code that should be fixed first.

Posted on Nov 24, 2008

  • pjny42 Dec 08, 2010

    Are you sure the knock sensor will not trip the check engine light??? my codes comeup like that ... and i don't want to pay alot of money to get it fixed only to find out it didnt trip my engine light


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I have a 2000 Nissan Xterra my check engine light came on the scanner read knock sensor came up how to replace it and location

Posted on Mar 10, 2010

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Fixing the knock sensor what else should I changed since the mechanic is going to go into the engine?

Posted on Mar 02, 2010

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I had the same problem my code read knock sensor and evap leak after paying to get fixed the mechanic told me knock senser wont make the check engine light go on so dont waste your money trying to fix those problems i paid around 600 it was like 180 for the part then the rest was labor

Posted on Mar 15, 2010

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2 Answers

Check engine soon. giving codes p0120, p1705, p0325

TPS sensor (RPM) po120,knock sensor po325.

Mar 25, 2015 | 2001 Nissan Xterra

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Bypass knock sensor on 2002 xterra

these are designed to be placed were they are so it will only pick up a knock from the engine and not other things bolted to the engine. just replace the knock sensor were it was designed to work best.

Aug 22, 2014 | 2002 Nissan Xterra

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I have a 2003 nissan xterra and when I crank it up a loud knocking noise can be heard I do mean loud. I took it to autozone a while back when the check engine light was on and they said I needed a new...

I would have to be there to hear it. You may want to have it towed to a shop to get their opinion.
A knocking noise is usually a rod bearing or other internal engine part, and very serious damage can result.

Jul 03, 2013 | Cars & Trucks

1 Answer

2000 xterra code p0325 the common issue

It will not pass inspection.
P0325 NISSAN - Knock Sensor Circuit Malfunction xicon.jpg CodePossible causes- Faulty knock sensor
- Knock sensor circuit short to ground
- Knock sensor circuit short to power
- Knock sensor circuit open
- Faulty Engine Control Module (ECM) Tech notes Very common problem with Nissan vehicles. Replacing the knock sensor usually takes care of the problem.

Jul 03, 2012 | Nissan Xterra Cars & Trucks

2 Answers

I have on 01 xterra-service engine light on-codes P1126 & P0325. I think the battery is about to go,could it be realated to codes? Otherwise what do the codes mean? Appreciate any help

Your battery has nothing to do with these codes. Your vehicles computers have detected a malfunction or failure in the system. This triggers these codes and sets your check engine light. Below I have listed the code meanings and some repair solutions.

P1126 - Throttle Position (Narrow Range) Sensor Circuit Malfunction.

Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM.

Possible Causes For P1126:
- Harness or connectors (Throttle control motor relay circuit is open)
- Throttle control motor relay

P0325 - Knock Sensor Circuit Malfunction

The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a voltage signal and sent to the Powertrain Control Module (PCM) or Electronic Control Module (ECM).

Possible Causes For P0325:
- Knock sensor circuit short to ground.
- Knock sensor circuit short to power.
- Knock sensor circuit open.
- Damaged knock sensor.
- Damaged PCM or ECM

Possible Solutions:
- Repair or resecure harness or connector
- Replace knock sensor Bank 1 (Bank 1 if applicable)
- Replace PCM or ECM

The P0325 DTC is a very common problem with Nissan vehicles. On most Nissan vehicles the knock sensor is located on top of the engine block.


Jan 20, 2011 | 2001 Nissan Xterra

3 Answers

Diagram available for 01 Nissan Xterra Knock Sensor location?

V6 3.3L The sensor is located underneath the air intake manifold on top of the engine block. This should take an experienced mechanic about 3-4 hours to replace.


Fig. Engine compartment component locations

Hope this help (remember rated this free help) Good luck.

Feb 08, 2010 | 2001 Nissan Xterra

1 Answer

2000 Nissan Xterra Service Engine soon indicator is always on

The knock sensor is not a huge deal to replace and will not turn on the light. It should be dont though.

The crankshaft sensor is located directly between the engine and transmission. It is dead center at the bottom.

May 17, 2009 | 2000 Nissan Xterra

1 Answer

2001 xterra vehcile speed sensor problem;f=2;t=001342

Jan 02, 2009 | 2001 Nissan Xterra

2 Answers

2004 Nissan Xterra 75,000 miles

I have never heard of a knock sensor, the engine light on is usually do to a fuel air problem such has o2 sensors gas caps not sealing right or mass air flow sensors, the a/c problem sounds like if there are no leaks in system then your high low sensors one of them could have failed or your system froze up and needs to thaw if it froze let sit you will see a puddle of water on ground passenger side under vehicle close to engine this is from the evaporator if it froze up it will not allow air flow to go through it therefore you will get only heat turn heater on this will help thaw the evaporator quicker this freezing is usually due to an overcharged system or a system that is contaminated and needs flushed vacuemed and recharged.

Jun 29, 2008 | 2002 Nissan Xterra

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