how can i get the original factory codes setting for a 2004 Nissan Maxima 3.5L?
Do you mean the engine idle specs?
The P0507 code is for the engine idle problem. P0507 NISSAN - Idle Control System RPM Higher Than Expected
Read more: https://www.autocodes.com/p0507_nissan.html
You should start by performing the Idle Air Volume Learning procedure. Instruction here: http://nissanhelp.com/diy/maxima/projects/nissan_maxima_idle_air_volume_learning.php
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