2003 G35 Sedan Faulty Camshaft Sensor Fix - 6MT.net Infiniti G35/G37/GTR Forums
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Old 08-05-2009, 08:57 AM   #1 (permalink)
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Unhappy 2003 G35 Sedan Faulty Camshaft Sensor Fix

Hello all, I am new to this forum, new to G35's and this is my first post.

I have tried to search for a solution but did not find a problem similar to mine, though I did find some helpful info for the coupe version.

I have a 03 sedan with 125,000. The Service Engine light came on, I ran a diagnostic and it turns out its a faulty camshaft sensor. I have read online that there was a recall on this so I called Infiniti to see what was up and they said that my car was not affected and that they could do nothing more to help.

So my question is, how would I go about replacing it or should I even replace it? I have seen the part online for about $60 and it seems like an easy fix but my car is running fine. But I rather be safe than sorry.

Also, I would really appreciate some pics of the actual sensor or a diagram so I don't have to spend hours looking for it.

I appreciate any input you guys have, thanks!
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Old 08-05-2009, 09:40 AM   #2 (permalink)
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Welcome to crazyville.

Bummer your car is acting up
This might help, might not.

Camshaft position sensor (location?)
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Old 08-05-2009, 09:46 AM   #3 (permalink)
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congrats and welcome to the forum!
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Old 08-05-2009, 10:09 AM   #4 (permalink)
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welcome to forum and good luck with the repair
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Old 08-05-2009, 10:58 AM   #5 (permalink)
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Welcome to 6MT.

You should fix the problem. It's setting off the light for a reason.

you can download the service manual at All About Infiniti if you want to DIY.
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Old 08-05-2009, 02:23 PM   #6 (permalink)
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Thanks for all the input so far guys. Also, if anyone has done this before or has knowledge, what kind of camshaft sensor should I be getting? Angle or straight, LH/RH bank? I am completely clueless on here but refuse to pay the dealer $500 for a $50 part and my own FREE labor.
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Old 08-05-2009, 08:31 PM   #7 (permalink)
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Buy the part online from one of the OEM parts retailers and DIY.
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Old 08-05-2009, 09:08 PM   #8 (permalink)
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http://www.infinitipartsonline.com/p...&siteid=214952

they are one of our supporting vendors.
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Old 08-09-2009, 10:48 AM   #9 (permalink)
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Hello, I'm new to the forums here as well... my 04 G35 has a faulty cam position sensor as well..

I have the car apart in the garage now...

In order to get to the sensor on the drivers side you need to take the everything off from the Air Box to the throttle body. Not really a big deal.

I'm not doing the passager side now so... I don't know about that...

My question is how do I unhook the sensor... I know it is easy if you know the trick..

Whats the trick?
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Old 09-18-2009, 03:35 PM   #10 (permalink)
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I have a 03 G35 sedan built in August 2002 (1 month after the recall date). My car turned off while I was driving (on fwy). check engine light on, slip, traction control light on. I put it in neutral and restarted it. I was going 10mph (L.A. traffic top speeds). I manage to get to my smog shop where I pulled the trouble codes. P0340.

Here's what I know about the camshaft position sensor. First, the trouble code for the RH is P0340, LH is P0345.

The RH is located on the Pasenger side. The LH is located on the Drivers side. The RH is angled, the LH is straight.

Second, to remove it, you have to pull and twist the connector harness at the same time. go tothe following web site for detail instructions.
http://nhthqnwws112.odi.nhtsa.dot.go...3V455-9406.pdf

Good luck my friends.
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Old 09-19-2009, 10:19 AM   #11 (permalink)
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Quote:
Originally Posted by NUNDA View Post
I have a 03 G35 sedan built in August 2002 (1 month after the recall date). My car turned off while I was driving (on fwy). check engine light on, slip, traction control light on. I put it in neutral and restarted it. I was going 10mph (L.A. traffic top speeds). I manage to get to my smog shop where I pulled the trouble codes. P0340.

Here's what I know about the camshaft position sensor. First, the trouble code for the RH is P0340, LH is P0345.

The RH is located on the Pasenger side. The LH is located on the Drivers side. The RH is angled, the LH is straight.

Second, to remove it, you have to pull and twist the connector harness at the same time. go tothe following web site for detail instructions.
http://nhthqnwws112.odi.nhtsa.dot.go...3V455-9406.pdf




Good luck my friends.

Great first post!! thanks and welcome to 6MT
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Old 09-28-2009, 04:17 PM   #12 (permalink)
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Quote:
Originally Posted by NUNDA View Post
I have a 03 G35 sedan built in August 2002 (1 month after the recall date). My car turned off while I was driving (on fwy). check engine light on, slip, traction control light on. I put it in neutral and restarted it. I was going 10mph (L.A. traffic top speeds). I manage to get to my smog shop where I pulled the trouble codes. P0340.

Here's what I know about the camshaft position sensor. First, the trouble code for the RH is P0340, LH is P0345.

The RH is located on the Pasenger side. The LH is located on the Drivers side. The RH is angled, the LH is straight.

Second, to remove it, you have to pull and twist the connector harness at the same time. go tothe following web site for detail instructions.
http://nhthqnwws112.odi.nhtsa.dot.go...3V455-9406.pdf

Good luck my friends.
Great document... I just did my passenger side CPS as well. But I believe you have mixed up one point:

The RH (passenger side) sensor is straight and the LH (driver's side) sensor is angled.
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Old 10-15-2009, 12:31 PM   #13 (permalink)
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Hey guys I just got an 04 g35 Auto with 104K, and 2 days ago my "SERVICE ENGINE SOON" light came on...I had it diognost and they told me its the Camshaft positioning sensor...I see this is a common issue with the G35's...Im ready to fix it just dont kno which sensor it is, i think there is 2 camshaft positioning sensors just dont know which one needs the replacing??
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Old 10-15-2009, 02:28 PM   #14 (permalink)
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Check the code with the scanner 0340 is passenger and 0345 is driver side. They are different.
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