Post by
maxhopper »
https://forums.nicoclub.com/maxhopper-u11180.html
Sat Jun 17, 2006 9:17 am
If it's a four banger, then it's an Altima.
My 97 Maxima has a similar "vent hose" that has one side that doesn't connect to anything like what you have outlined in the picture.
I would clean the idle air control valve and check the EGR valve.
I'll move this to the Altima forum for you in hopes of getting a more accurate diagnosis.