16785/P0401/001025: Difference between revisions
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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. | ||
* 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 please see: TSB 26-12-08 | TPI# 2031583. When the Exhaust Pressure Flap Control Module (J883) is faulty, the engine controller may have any of the following DTCs: | |||
**[[P047F/00115 | P047F/001151 - Exhaust Pressure Control Valve: Stuck Open]] | |||
**P0477 - Exhaust Pressure Control Valve "A" Low | |||
**[[P048A/001162 | P048A/001162 - Exhaust Pressure Control Valve 1: Stuck Closed]] | |||
**P048B - Exhaust Pressure Control Valve "A" Position Sensor/Switch Circuit | |||
**P048C - Exhaust Pressure Control Valve "A" Position Sensor/Switch Circuit Range/Performance | |||
**[[16785/P0401/001025 | 16785/P0401/001025 - Exhaust Gas Recirculation (EGR) System: Insufficient Flow Detected]] | |||
[[Category:Fault Codes]] | [[Category:Fault Codes]] | ||
Revision as of 21:05, 1 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
- Some TDI-CR engines have a filter for the EGR that can become restricted and cause a "Insufficient Flow" code.
- 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 please see: TSB 26-12-08 | TPI# 2031583. When the Exhaust Pressure Flap Control Module (J883) is faulty, the engine controller may have any of the following DTCs:
- P047F/001151 - Exhaust Pressure Control Valve: Stuck Open
- P0477 - Exhaust Pressure Control Valve "A" Low
- P048A/001162 - Exhaust Pressure Control Valve 1: Stuck Closed
- P048B - Exhaust Pressure Control Valve "A" Position Sensor/Switch Circuit
- P048C - Exhaust Pressure Control Valve "A" Position Sensor/Switch Circuit Range/Performance
- 16785/P0401/001025 - Exhaust Gas Recirculation (EGR) System: Insufficient Flow Detected