16786/P0402/001026

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16786/P0402/001026 - Exhaust Gas Recirculation (EGR): Excessive Flow

Possible Symptoms

  • Malfunction Indicator Light (MIL) ON
  • Reduced Exhaust Gas Recirculation (EGR)
  • Reduced Power Output/Engine running rough
  • Increased Emissions

Possible Causes

  • Exhaust Gas Recirculation (EGR) Valve stuck open/leaking/faulty
  • Exhaust Gas Recirculation (EGR) System leaking/faulty
  • Wiring and/or Connector(s) from/to Exhaust Gas Recirculation (EGR) Valve faulty

Possible Solutions

  • Check/Clean Exhaust Gas Recirculation (EGR) System
  • Check/Replace Exhaust Gas Recirculation (EGR) Valve
  • Check Wiring and/or Connector(s) from/to Exhaust Gas Recirculation (EGR) Valve
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