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Jun 17, 2005 · 7 Posts
Discussion Starter · #1 ·
Jun 25, 2005 I took my 2001 Nissan Pathfinder to the Nissan dealership to have the Check Engine light diagnosed. They said I need to replace the Camshaft Position Sensor. I'm going to try to have my dad replace it for me. I have the Chilton book that shows how to replace it. I checked to see if AutoZone has the part and they said that
there are TWO sensors required, but the Chilton book only shows one sensor to replace. Does anyone know anything about this sensor or has anyone ever replaced one? How difficult is it to do? Is there really two sensors or only one? Any help would be greatly appreciated. Thanks. Heather Joined Dec 16, 2017 · 17 Posts
Sorry for bumping this thread, but the search engine sucks and this is the only post that remotely is what I searched for. Does anyone know how many Camshaft Position Sensors there are on a 2002 Pathfinder? I was told there were 6, but that seems extreme. I had one (maybe the only one) replaced back in August 2019 and I'm getting the P0340
code again. Thanks for the help! 2006 Pathfinder LE, 2003 Frontier SVE Joined
Jan 1, 2006 · 10,670 Posts
The P0340 code is for the cam position sensor [phase]. It is located on the front cover, just below the cover for the left bank (driver's side in US) variable timing sprocket, if your production date is earlier than 07/2002, which it "probably" is. Those produced "from 07/2002" and later have two cam sensors and are the same as the VTC sensors on
the front cover. If you need a picture, go to page EC-336 of the 2002 Pathfinder factory service manual, which you can access at NICO Club's website. For "up to 07/2002," click on this link: For "from 07/2002," click here: You can also narrow down the
search by using your VIN # at NissanPartsDeal.com. Joined
Dec 16, 2017 · 17 Posts
smj999smj Thanks again! 2006 Pathfinder LE, 2003 Frontier SVE Joined
Jan 1, 2006 · 10,670 Posts
smj999smj Thanks again! There is only one cam position sensor that will trigger the P0340 and that's the one I mentioned. The others are crank sensors or VTC position sensors and will trigger other codes that the P0340. You would be better off referring to the diagnostic steps for the P0340 trouble code located in the "EC" section of the
2002 Nissan Pathfinder Factory Service manual, which you can access for free at NICO club's website. Joined
Dec 16, 2017 · 17 Posts
So I've decided to maybe try and replace this myself - looking at the part codes, I don't see one that is just 23731. There is one with an M and MA at the end - do you know which would be appropriate? I've attached the diagram from the parts site for pre 07/2002 49.7 KB Views: 476 rogoman· Admin and Sup Mod keeping the peaceJoined Dec 16, 2004 · 8,504 Posts
The part number is: 23731M Camshaft position sensor (phase). 2006 Pathfinder LE, 2003 Frontier SVE Joined Jan 1, 2006 · 10,670 Posts
Sorry, I meant "23731M." I wouldn't get a sensor from Autozone. I would recommend genuine Nissan, Hitachi or NTK. Joined Dec 16, 2017 · 17 Posts
Just ordered genuine part and will post back once I install it -- it seems very easy to get to
4 MB Views: 1,009 Joined Dec 16, 2017 · 17 Posts
Just received and installed the part. Can't believe how easy it was and it seems to start better. I'll know more in the next day or so. Thanks everyone for the help on this! rogoman· Admin and Sup Mod keeping the peaceJoined Dec 16, 2004 · 8,504 Posts
Good to hear that. Chasing through the sensorama maze can be challenging. Hopefully your car is running OK now. Joined Feb 12, 2019 · 5 Posts
2006 Nissan Pathfinder, P0340 code displayed. I just replaced my passenger side camshaft position sensor (US right side when looking out front window). Symptoms were a hesitant start upon turning over ignition (1-2 secs vs 3-4 seconds), rough idle, check engine light, VDC light displayed "off". Read the information on the forum here (thanks)
and watched a few youtube videos. Biggest challenge was getting my large hands into the tight space and getting my 200 lbs. body atop the engine bay for proper reach and leverage. Some thoughts: I found my visible target from the passenger side, well hidden it was, but I could see the light colored plug. I did NOT remove, push aside or
disconnect anything else from the driver side or passenger side. From the drivers side, I looked for solid things to rest my body weight & did the superman position, stomach on radiator forearm chin resting near the back. From this position, it was easy to feel the single 10 mm bolt and apply leverage. From the passenger side, I pulled out sensor with electrical plug still attached. I used my left thumb to depress release clip and then followed thru with needle nose pliers at
which point it "sprung" apart without the need pry. I clipped new part into the old connector with my left hand only from the passenger side. The new OEM camshaft sensor was visibly different than the OEM. It had a metallic dull silver rod/insert instead of the plastic coated black rod/insert. Apparently, this 23731-6J90D supersedes the old part & number. My Premier Nissan Dealer in Fremont, CA charged about $199, well above the $140 MSRP. I just located their online parts
store, which did have it at the MSRP. I noted the same with other parts on my past invoices. In service parts were 40-50% above Nissan North America MSRP. Everything drives fine now! Joined Feb 12, 2019 · 5 Posts
Here's the visible difference in the camshaft position sensor mentioned above.
Joined Feb 12, 2019 · 5 Posts
Where is my camshaft position sensor located?The Camshaft Position sensor is typically located in the cylinder head of the engine and has a cylindrical portion that inserts into the head. The Crankshaft Position sensor is normally located in the timing cover or on the side of the block with a cylindrical portion that inserts into the block.
What are the symptoms of a faulty camshaft sensor?A glowing check engine light, stalling, poor acceleration and bad fuel mileage are all possible signs your camshaft position sensor may be failing. Gone are the days of carburetors and distributors, replaced by a variety of sensors that help a car's computer get the maximum performance out of the engine.
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