Check for air leaks from the maf sensor all the way to the O2 sensors. A bad O2 sensor will often cause more than just the P2A00 code.
iirc most people that have had this problem generally found an un-metered air leak somewhere which once fixed resolved the problem. Do a search to find more info.
__________________
'11 370Z Nismo #528 Fast Intentions | Stillen | Motordyne | Uprev | CSF | Zspeed | Z1 Motorsports | AST | Swift | SPC | SPL | Whiteline | Hotchkis | Bride | Schroth | Robispec | Cusco | Nismo | Volk | Forgestar | Hoosier | RJM
'17 Titan Bone Stock
|