EV Diagnostics
Source-backed diagnostic reference

P1407 EV diagnostic code

EGR Air Intrusion In Exhaust Supply To EGR Valve

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

  • BUICK: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • CADILLAC: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • CHEVY: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • CHRYSLER: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • FORD: EGR No Flow Detected Source
  • GM: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • GMC: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • LINCOLN: EGR No Flow Detected Source
  • MAZDA: No EGR Flow Detected Source
  • MERCURY: EGR No Flow Detected Source
  • OLDSMOBILE: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • OTHER: EGR No Flow Detected Source
  • PLYMOUTH: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • PONTIAC: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • SATURN: EGR Air Intrusion In Exhaust Supply To EGR Valve Source
  • VOLKSWAGEN: EGR Temperature Sensor Signal Too Low Source

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