Difference between revisions of "16785/P0401/001025"

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* Some TDI-CR engines have a filter for the EGR that can become restricted and cause a "Insufficient Flow" code.  
 
* Some TDI-CR engines have a filter for the EGR that can become restricted and cause a "Insufficient Flow" code.  
  
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When this fault is stored in a 2009-2014 NAR market [[2.0L CR TDI]] (CBEA or CJAA ) VW Jetta/Golf (1K/AJ)
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*Please See TSB 01 14 11 | TPI# 2034898
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** May also have fault code stored in ECM
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***[[18895/P2463/009315 | 18895/P2463/009315 - Diesel Particle Filter: Excessive Soot Accumulation]]
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** This code may appear after a regeneration was completed especially when the soot loads before the regeneration were high.
 
[[Category:Fault Codes]]
 
[[Category:Fault Codes]]

Revision as of 17:15, 11 July 2014

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

When this fault is stored in a 2009-2012 NAR market 2.0L CR TDI (CBEA, CJAA, CKRA) VW Jetta/Golf (1K/AJ) or the NMS Passat (A3) chassis:


When this fault is stored in a 2009-2014 NAR market 2.0L CR TDI (CBEA or CJAA ) VW Jetta/Golf (1K/AJ)