Difference between revisions of "16785/P0401/001025"

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* Check/Replace Exhaust Gas Recirculation (EGR) Valve
 
* Check/Replace Exhaust Gas Recirculation (EGR) Valve
 
* Check Wiring and/or Connector(s) from/to Exhaust Gas Recirculation (EGR) Valve
 
* Check Wiring and/or Connector(s) from/to Exhaust Gas Recirculation (EGR) Valve
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==== Special Notes ====
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* Some TDI-CR engines have a filter for the EGR that can become restricted and cause a "Insufficient Flow" code.
  
 
[[Category:Fault Codes]]
 
[[Category:Fault Codes]]

Revision as of 11:49, 30 August 2013

16785/P0401/001025 - Exhaust Gas Recirculation (EGR) System: Insufficient Flow Detected

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

Special Notes

  • Some TDI-CR engines have a filter for the EGR that can become restricted and cause a "Insufficient Flow" code.