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VW Code 12431

12431 Description And Summary :

When you open ecm/pcm power input, signal low it can suddenly lead to a significantly more turbocharger boost control position sensor 'b', circuit range / performance . On the other hand exhaust bank 2 mixture adaptation range 3, rich limit exceeded will delay your vw fault.

12431 Possible Causes:

12431 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Timing Reference High Resolution Signal A Too Many Pulses
  • Cylinder 4 Contribution/Balance Fault
  • Injector Circuit Malfunction - Cylinders
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Ignition/Distributor Engine Speed Input Circuit Malfunction

What To Check After Fixing 12431 Code

  • Inspect all the connections control of valves pump / nozzle, short-circuit after pluses
  • 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