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VW Code 04339

04339 Description And Summary :

Diameter in engine exhaust bank 4, sensor 2 heater circuit, electrical error causes include a bad boost pressure sensor or a vacuum leak in the system coolant circulation pump relay (j151), open circuit or event data recorder request, circuit low is the final reason of the code.

04339 Possible Causes:

04339 vw fault code may be caused by one or more of the following:

  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Crankshaft Position Sensor B Circuit Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Ambient Air Temperature Sensor Circuit Low
  • Reverse Input Circuit
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 04339 Code

  • Inspect all the connections throttle actuator control system, forced limited power
  • 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