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Discussion Starter #1
2014 Nissan Altima sv 2.5. keep getting p0101. Clean maf, reset monitors. Stays away for a bit. Updated pcv. What else am I looking for here before I bring it to dealer to have the ecm updated? Vacuum leaks?
 

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09 Altima 3.5SE 6MT Sedan
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5,635 Posts
Bad sensor ground?
 

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Discussion Starter #4
Anyone else? Replaced MAF (saw pin snapped off, didn't realize it was supposed to be that way) and replaced PCV with newer black revision. Reset all monitors and changed oil. My fuel economy lacks. I'll see if the codes come back. Besides having reprogramming done at the dealership, what else has solved this issue? Wish I knew these cars were duds before I bought one.
 

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09 Altima 3.5SE 6MT Sedan
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5,635 Posts
If you're still getting P101s...check for intake air leaks (anywhere from the MAF back to the intake, and the MAF to the crankcase breather hose).
 

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Did you solve the problem?

I have a similar problem. I replaced MAF and air filter. Also cleaning throttle body. But, it turned on MIL for P0101.
Where did you buy PVC valve?
Do I need reprogramming?
 
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