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Diagnostic Trouble Codes (DTC) Index

DIAGNOSTIC TROUBLE CODES (DTC) INDEX

SAE Code VAG Code Code Description Corrective action
P0420 - Catalyst System Efficiency Below Threshold Bank 1
  • Three Way Catalytic Converter (TWC)
  • Oxygen Sensor 1 After Catalytic Converter -GX7-
  • Oxygen Sensor 1 Before Catalytic Converter -GX10-
P0148 - Fuel Delivery Error
P025C - Fuel Pump Module "A" Control Circuit Low
P025A - Fuel Pump Module "A" Control Circuit/Open
P025D - Fuel Pump Module "A" Control Circuit High
P0261 - Cylinder 1 Injector "A" Circuit Low
P0201 - Cylinder 1 Injector "A" Circuit
P0262 - Cylinder 1 Injector "A" Circuit High
  • Fuel Injectors --
P0201 - Cylinder 1 Injector "A" Circuit
  • Fuel Injectors --
P0420 - Catalyst System Efficiency Below Threshold Bank 1
  • Three Way Catalytic Converter (TWC)
  • Oxygen Sensor 1 After Catalytic Converter -GX7-
  • Oxygen Sensor 1 Before Catalytic Converter -GX10-
P0088 - Fuel Rail/System Pressure - Too High Bank 1
P0087 - Fuel Rail/System Pressure - Too Low Bank 1
P01C4 - Fuel Pressure Sensor "A" Circuit Range/Performance
  • Fuel Pressure Sensor -G247-
  • Fuel Metering Valve -N290-

  • Check the fuel pressure and delivery quantity.
  • Fuel Pressure Sensor -G247-
  • Fuel Metering Valve -N290-
  • Fuel Delivery Unit -GX1-

 
P01C4 - Fuel Pressure Sensor "A" Circuit Range/Performance