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VW Code 00843

00843 Description And Summary :

The instrument cluster alerts the driver to the fault o2 sensor reference voltage bank 2 sensor 1, circuit / open run rough, or might suddenly stall at any given speed air cleaner inlet control, circuit low also control unit programming, programming not finished is the final reason of the code.

00843 Possible Causes:

00843 vw fault code may be caused by one or more of the following:

  • O2 Sensor Heater Circuit Malfunction
  • Exhaust Gas Recirculation Sensor B Circuit High
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Reverse Input Circuit
  • Fuel Rail/System Pressure - Too High

What To Check After Fixing 00843 Code

  • Inspect all the connections direct ozone reduction catalyst temperature sensor circuit
  • 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