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A P0507 DTC trouble code may be caused by one or more of the following:

  • A vacuum leak
  • Leaking air intake after the throttle body
  • EGR valve leaking vacuum
  • A faulty positive crankcase ventilation (PCV) valve
  • Damaged/failed/dirty throttle body
  • Failed EVAP system
  • Failed IAC (idle air controller) or faulty IAC circuit
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12y ago
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Q: How do you fix error code PO507 on a 2001 Saturn SL1?
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