does anybody have any info on this code for a 2014 maxima? if so could you let me know what i need to look for to fix this problem

 

Link to online FSM......look in the EC section

https://www.my4dsc.com/nissan-info/f...ervice-manual/

 

Captive8 is correct but lets get you a little closer. You are looking at a bad pcv valve/hose or air leak most likely
Here is the test procedure for the P0507Diagnosis Procedure
1. CHECK PCV HOSE CONNECTION Confirm that PCV hose is connected correctly.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace malfunctioning part.
2. CHECK INTAKE AIR LEAKAGE

1. Start engine and let it idle.
2. Listen for an intake air leakage after the mass air flow sensor. Is intake air leakage detected?

YES - Discover air leakage location and repair.
NO - GO TO 3.
3. REPLACE ECM

1. Stop engine.
2. Replace ECM.