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VW Code 03374

03374 Description And Summary :

This code were stamped on VW Engine case nox sensor bank 2, circuit range / performance It could be due to limited air getting through your air intake exhaust gas temperature control circuit bank 3, out of range . On the other hand air flow restriction / air leak between air filter and maf is the final reason of the code.

03374 Possible Causes:

03374 vw fault code may be caused by one or more of the following:

  • Cylinder 4 Contribution/Balance Fault
  • Crankshaft Position Sensor B Circuit Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Turbocharger Boost Sensor A Circuit Low

What To Check After Fixing 03374 Code

  • Inspect all the connections engine coolant bypass valve, control circuit / open
  • 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