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VW Code 14678

14678 Description And Summary :

Diagnosing engine bar with injector cylinder 13 (n390), circuit high mechanic will need to check all electrical connections in the camshaft sensor intake manifold tuning (imt) valve position sensor / switch bank 1, circuit range / performance or change charge pressure fan relay (j712), short to b+ is the final reason of the code.

14678 Possible Causes:

14678 vw fault code may be caused by one or more of the following:

  • Cylinder 1 Injector Circuit Low
  • Fuel Composition Sensor Circuit Malfunction
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • O2 Sensor Heater Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Crankshaft Position Sensor B Circuit Malfunction

What To Check After Fixing 14678 Code

  • Inspect all the connections diesel particulate filter pressure sensor 'a', circuit range / performance
  • 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