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VW Code 02491

02491 Description And Summary :

The problem is about fuel additive control module warning lamp request it can suddenly lead to a significantly more glow plug indictor light (k29), malfunction message from instrument cluster or change accelerator pedal position sensor 1 (g79), signal too high is the final reason of the code.

02491 Possible Causes:

02491 vw fault code may be caused by one or more of the following:

  • Glow Plug/Heater Circuit 'A' Malfunction
  • Engine Oil Temperature Sensor Malfunction
  • Fuel Rail Pressure Sensor Circuit Malfunction
  • O2 Sensor Heater Circuit Malfunction
  • Cold Start Injector 1 Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Reverse Input Circuit
  • Throttle/Pedal Position Sensor/Switch A Circuit Intermittent

What To Check After Fixing 02491 Code

  • Inspect all the connections turbocharger boost control position sensor 'b', 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