I bought this 03 6SP 350z a few days ago...

It will start, but it will not rev over 500RPMS! When you give it gas it will not go up at all... then it will bog down and DIE!

I have replaced

MAF
Cam sensor *passinger side*
Fuel pump
Throttle body
Plugs

Only code I am getting is:
P0506 Idle Speed Control System

What else can I try... i'm running out of ideas.


THANKS GUYS HOPE YOU HAVE A IDEA! LOL