Just a guess but I'm gonna have to say that your primary bank 1 O2 sensor is either bad or the wiring is messed up. Reason I say this is the P0031 code. Just can't see that popping up unless the wiring or sensor are junk.
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'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
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