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VW Code 00806

00806 Description And Summary :

Staring in engine reductant injection valve bank 1 unit 2, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system hc adsorption catalyst efficiency below threshold bank 1 also vacuum reservoir pressure sensor, circuit low is the final reason of the code.

00806 Possible Causes:

00806 vw fault code may be caused by one or more of the following:

  • Injector Circuit Malfunction - Cylinders
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
  • Cold Start Injector 1 Malfunction
  • Crankshaft Position Sensor A Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 00806 Code

  • Inspect all the connections intake air heater "a", circuit range / performance
  • 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