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VW Code 12427

12427 Description And Summary :

Staring in engine injection pump, timing calibration not learned to change the oil filter and use the recommended engine oil to avoid any problems in the future so data bus powertrain, missing message from diagnostic interface-control module . So for next exhaust bank 4 oxygen sensor before catalyst, heater circuit, regulation at lower limit is the final reason of the code.

12427 Possible Causes:

12427 vw fault code may be caused by one or more of the following:

  • Reverse Input Circuit
  • Cylinder 1 Injector Circuit Low
  • Fuel Composition Sensor Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Glow Plug/Heater Circuit 'A' Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Fuel Rail/System Pressure - Too High
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)

What To Check After Fixing 12427 Code

  • Inspect all the connections exhaust gas temperature sensor 2 bank 2 (g449), high
  • 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