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  #1  
Old 02-21-2021, 05:21 AM
sentrajoe sentrajoe is offline
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2009 Frontier
 
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Angry 2013 Sentra P0101 PCV valve

I have a P0101 DTC in my 2013 Sentra SL, I have cleaned the Mass Airflow Sensor several times cleared the code and it ultimately comes back sometimes in a day or two sometimes in a week or more. Checked the air filter and filter box, it was shamefully dirty so I replaced the filter and cleaned the filter housing, also I had to zip tie the upper airbox tube because at some point I noticed the clip was missing and I searched to buy a new one to close the air gap from the tube to the filter box. After searching I realized there was no such clip and that the tube end has a molded in clip that must have been broken off, by I presume the dealership where I took it for a recall a few years ago, so I zip tied the tube to the air filter box. Ok that being done I thought I had solved the DTC but it came back a week later. Now after more research I am looking at the PCV valve and see there is a Technical Bulletin (NTB16-027) that suggest to change the PCV valve if it is colored orange. So I shopped for a replacement and all I can find are new orange ones. My question is why is the orange one significant, can I feel good about replacing the old orange with a new orange one? Is there another PCV valve I should be looking for? I have not yet cleaned or inspected the throttle body yet either.

Last edited by sentrajoe; 02-21-2021 at 05:23 AM.
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  #2  
Old 02-23-2021, 10:21 AM
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NissanTech NissanTech is offline
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The color represents the new design, you could try searching with the part number: 11810-6N202. There are some for sale on Amazon or at your local Nissan dealer. Due to the age of your Sentra, you should do the throttle body cleaning as well.
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  #3  
Old 02-23-2021, 11:18 AM
sentrajoe sentrajoe is offline
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2009 Frontier
 
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Thank You, I am looking into the throttle body cleaning now. The question I had about the color of the pcv was related to the NTB16-027 service bulletin that says to change the pcv if it is colored orange, but all the ones that fit that vehicle are orange no matter where I shop from. If the new one is also orange would that be ok?

I keep running a scan on the car everytime the DTC comes back and I see there is an out of range IAT temperature in my live datastream also my short term fuel trim B1S2 is at 99.219%

I am preparing to buy anew pcv and grommet , it is orange but that is all i can find that fits this vehicle.
It is driving me nuts.
Any other thoughts would be appreciated.

Last edited by sentrajoe; 02-23-2021 at 11:56 AM. Reason: spelling
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Old 03-03-2021, 10:01 AM
Sentra2013 Sentra2013 is offline
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Hey I was going through the same issue and I decided to try and see if the local Nissan dealer had the black PCV valve. They did ($24). I just changed mine out yesterday but still waiting for the check engine light to go away. Other than this, I have changed out my filter and cleaned out the maf sensor but light was still on so pcv valve seemed like the next step. I'll update if there's any progress.
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  #5  
Old 03-03-2021, 12:26 PM
sentrajoe sentrajoe is offline
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2013 Sentra
2009 Frontier
 
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Default pcv black

Thanks for the reachout. I asked my nissan dealer if they had the pcv and they do for $24 and the grommet seal for $4. Waiting for the DTC to show again then I will proceed with the pcv change like you are. I will keep you in the loop.
Can you not clear your existing DTC code with a scan tool?
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