the 2 codes were p0101 and p010b.
either way nissan replaced both MAF's.
I have an uprev tune from feaver racing (zfeaver) and I got the tune the same time I got the gen 3s, gthaus exhaust and art pipes. so my afr was perfect as of about a year ago when I got the tune. originally I had k&n filter but last month I changed them to the aem dry flows that stollen sells for the gen 3's and also put on HydroShield from injen.
it's at nissan now, i gotta drive this in the mean time lol