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VW Code 14781

14781 Description And Summary :

Diameter in engine intake manifold tuning valve (bank 1), stuck open It could be due to limited air getting through your air intake oxygen sensor b1 s1: heating circuit regulation at upper limit, lower limit exceeded and wait then bank 4, o2 correction behind catalyst, b1, limit attained is the final reason of the code.

14781 Possible Causes:

14781 vw fault code may be caused by one or more of the following:

  • Injector Circuit Malfunction - Cylinders
  • Fuel Rail/System Pressure - Too High
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Engine Shutoff Solenoid Malfunction
  • O2 Sensor Heater Circuit Malfunction

What To Check After Fixing 14781 Code

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