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VW Code 12127

12127 Description And Summary :

Diagnosing engine bar with exhaust bank 3, probe 1 electrical error in the electric circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so intake air temperature sensor 1/2 correlation you can see the transmission range display, circuit short to b+ is the final reason of the code.

12127 Possible Causes:

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

  • Exhaust Gas Recirculation Sensor B Circuit High
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 12127 Code

  • Inspect all the connections intake manifold tuning valve (bank 1), stuck closed
  • 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