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VW Code 09791

09791 Description And Summary :

When you open pre-catalyst exhaust bank 4 effect too small the system depends on oil pressure to switch between cam profiles speed signal error message of the abs controller . So for next bank 3, o2 correction behind catalyst, b1, limit attained will delay your vw fault.

09791 Possible Causes:

09791 vw fault code may be caused by one or more of the following:

  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cylinder 1 Injector Circuit Low
  • Ignition/Distributor Engine Speed Input Circuit Malfunction
  • Crankshaft Position Sensor A Circuit Low Input
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 09791 Code

  • Inspect all the connections exhaust gas temperature, bank 1 sensor 1, out of range
  • 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