HELP HELP HELPP!!! check engine soon light onnn code p1402 - Maxima Forums



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HELP HELP HELPP!!! check engine soon light onnn code p1402

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Old 04-04-2008, 02:21 PM   #1
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HELP HELP HELPP!!! check engine soon light onnn code p1402

hi my check engine soon light is on so i went to get the code and it is p1402 supposely the EGR system pleasee helpp and let me if this is extreme thanks and also my car idled bad today when i turned it on like hittin 1 den hopin to 2 den one so i reved the engine and it stopped could this have anything to do with it
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Old 04-04-2008, 04:55 PM   #2
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Old 10-10-2008, 02:11 PM   #3
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Old 02-18-2009, 03:11 PM   #4
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Originally Posted by brio_max View Post
Anyone know where to locate this, seems the link isn't good anymore.
Thanks
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Old 02-18-2009, 04:43 PM   #5
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How many miles you have on your car? I had that code this past summer. My local dealership asked me the same question. At the time I had around 89,000 miles. I was told that my egr valve was getting clogged up with carbon. They usually remove it and clean it. I was quoted around $350. I try to do all of my maintenance on my car. Since I had already changed my spark plugs on my max this past summer I figued I can do this also and save me $350. From my experience if you are willing and able to change the spark plugs on a 6 gen max you can clean the egr valve. The valve does not need to be removed to be cleaned. I just removed the egr tube from the intake manafold to the valve. I would also replace the gaskets when you do this. You do not have to do this but the gaskets might get messed up when you remove the tube. Then I sprayed some carb cleaner in the valve and used a small pipe cleaner to scrape out the carbon. If you have access to compressed air use that instead of the pipe cleaner. After I did this and cleared the code from the computer I have not had and egr problem since. I currently have 99,000 miles on my max. By the way I was quoted a $450 to have my spark plugs changed.
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Old 02-18-2009, 08:14 PM   #6
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Sorry, should have listed all that.

06, 40K miles, factory stock.
I plan on pulling the EGR valve tomorrow, and go from there. I hope it's only carbon buid up, and I have been using 87 octane while gas was outrageous so... maybe it is carbon.
How do you clear the code from the computer?

Thanks for the info!
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Old 02-19-2009, 07:16 AM   #7
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I have a code reader. It cost me about $150. It has more than paid for itself. Also I could not take out egr valve myself - not enough room and my hands were to big. But you can take of the egr tube from the intake manafold to the valve and clean it as I described above.
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Old 02-19-2009, 10:57 AM   #8
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Yeah I quickly found out that it wasn't gonna be easy to get to, so I changed that plan.

I may try removing just the tube like you spoke of. (Gaskets on both ends correct?)
Should have mentioned also, I had Auto Zone put it on the readed and it spit out on a P1402 code, nothing else. I'm just concearned about it possibly being the cats breaking to peaces and not carbon, I have only used 87 octane gas in it.
Thanks
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Old 12-17-2009, 09:36 AM   #9
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SALLYMAX/Anyone:

Am considering undertaking this project this weekend.

- Any cleaning done to the actual "Tube" after removal?

- after spraying carb cleaner into valve, what next for the unscraped carbon?... just let it drain down below?

- spray and scarpe, or let sit???? more detail?

- what else is missing from your thread?

sorry, am detailed-oriented and will follow instructions step by step to get it right. if you can expand more, that will be helpful.

thanks, and i too did my own spark-plugs 2 months ago.


[quote=sallymax;6878435]........From my experience if you are willing and able to change the spark plugs on a 6 gen max you can clean the egr valve. The valve does not need to be removed to be cleaned. I just removed the egr tube from the intake manafold to the valve. I would also replace the gaskets when you do this. You do not have to do this but the gaskets might get messed up when you remove the tube. Then I sprayed some carb cleaner in the valve and used a small pipe cleaner to scrape out the carbon. If you have access to compressed air use that instead of the pipe cleaner. After I did this and cleared the code from the computer I have not had and egr problem since. quote]
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