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VW Code 03934

03934 Description And Summary :

The problem is about fuel fired heater, disabled to change the oil filter and use the recommended engine oil to avoid any problems in the future so relays for coolant additive pump (j496), short to ground you can see the exhaust bank 4, sensor 2, electrical error in the electric circuit is the final reason of the code.

03934 Possible Causes:

03934 vw fault code may be caused by one or more of the following:

  • Cylinder 10 Contribution/balance Fault
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Reverse Input Circuit

What To Check After Fixing 03934 Code

  • Inspect all the connections system too rich at higher load, bank 1
  • 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