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P0266/000614 - Fuel Injector #2 (N31): Contribution/Balance Fault

Possible Symptoms

  • Malfunction Indicator Light (MIL) ON

Possible Causes

  • Engine controller software out of date. See special notes
  • Replacement Fuel Injectors (Injector Quantity Adjustment (IMA) channels) not calibrated to engine controller
  • Faulty Fuel Injector
  • Low compression or engine mechanical issues
  • Carbon deposits on Pressure Sensor/Glow Plugs including Cylinder specific Internal Pressure Sensor DTCs

Possible Solutions

  • Check/Update Engine controller software. See special notes
  • Check Injector Quantity Adjustment (IMA) Adaptation channels
  • Check/Replace Faulty Fuel Injector and calibrate IMA Adaptation channels
  • Check the Engine mechanical condition in addition to the installed Pressure Sensor/Glow Plugs

Special Notes

  • CR TDI engine controllers had several known software issues and dealer level flash updates over the years. Check the Official Factory Repair Information if your engine controller is not listed below:
    • VW:
      • When found in the NAR market 2009-2014 Jetta, Golf and Beetle CBEA and CJAA 2.0L CR TDI engine see TSB: 01-14-14
      • When found in the NAR market 2010-2014 Jetta, Golf and Beetle CBEA and CJAA 2.0L CR TDI engine see the Software update RVU/Recall TSB: 23O6
      • A combination of P0263, P0266, P0269 and P0272 are often found stored together in CBEA and CJAA 2.0L CR TDI engines