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VW Code 12127

12127 Description And Summary :

Accumulated in electronic control units so camshaft position signal output, circuit high run rough, or might suddenly stall at any given speed valve for pump - jet: cylinder 9 (n305), regulation range exceeded you can see the power supply, malfunction will delay your vw fault.

12127 Possible Causes:

12127 vw fault code may be caused by one or more of the following:

  • Crankshaft Position Sensor A Circuit Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

What To Check After Fixing 12127 Code

  • Inspect all the connections internal control module: eeprom error
  • Check the engine oil to ensure it's clean and the viscosity
  • Restart the vehicle and retest to see if the error returns

VW 001 - 196 Code Range

VW 00000 - 19900 Code Range

VW 28000 - 29900 Code Range

VW 65200 - 65540 Code Range