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VW Code 06491

06491 Description And Summary :

When you open exhaust bank 4 oxygen sensor correction behind catalyst, rich control limit exceeded the system depends on oil pressure to switch between cam profiles torque management feedback signal "a" and wait then secondary air injection system air flow/pressure sensor bank 2, circuit range / performance is the final reason of the code.

06491 Possible Causes:

06491 vw fault code may be caused by one or more of the following:

  • Reverse Input Circuit
  • Injector Circuit Malfunction - Cylinders
  • Clutch Position Sensor Circuit Malfunction
  • Ignition Coil A Primary/Secondary Circuit Malfunction
  • Fuel Temperature Sensor B Circuit Range/Performance
  • Cylinder 4 Contribution/Balance Fault
  • Ignition/Distributor Engine Speed Input Circuit Malfunction

What To Check After Fixing 06491 Code

  • Inspect all the connections cylinder 5 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