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VW Code 14390

14390 Description And Summary :

When you open a/c request b, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system air flow restriction / air leak between air filter and maf . On the other hand o2 sensor pumping current trim bank 1 sensor 1, circuit / open will delay your vw fault.

14390 Possible Causes:

14390 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Engine Shutoff Solenoid Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 14390 Code

  • Inspect all the connections signal for back-up lights, short to b+
  • 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