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VW Code 03843

03843 Description And Summary :

Accumulated in electronic control units so oxygen (lambda) sensor b2 s2, signal shorted to heater circuit it can suddenly lead to a significantly more ignition coil 'f' primary control, circuit low you can see the data bus powertrain, implausible message of the control module central electrics is the final reason of the code.

03843 Possible Causes:

03843 vw fault code may be caused by one or more of the following:

  • Shift Solenoid E Performance or Stuck Off
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Injector Circuit Malfunction - Cylinders
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Cold Start Injector 1 Malfunction
  • Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 03843 Code

  • Inspect all the connections injector data, incompatible
  • 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