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  1. Code PO507 - Idle Control System RPM High - Engine ODB2 Fault Codes

    Feb 1, 2007 · Hi, Have an 03 Altima 2.5S. Check engine light came on, code is PO507, Idle Control System RPM High.......RPM's are not high, vehicle misses now and then

  2. engine fault code po507 - Engine ODB2 Fault Codes - Carjunky

    Feb 21, 2007 · I have a 1998 buick lesabre that keeps putting the light on with a code po507. Can anyone help me?