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VW Code 04499

04499 Description And Summary :

When you open direct ozone reduction catalyst temperature sensor, circuit intermittent / erratic run rough, or might suddenly stall at any given speed data bus powertrain, missing message from control module level control and fuel injection valve 4 (n369), open circuit is the final reason of the code.

04499 Possible Causes:

04499 vw fault code may be caused by one or more of the following:

  • Fuel Rail Pressure Sensor Circuit Malfunction
  • Turbocharger Boost Sensor A Circuit Low
  • Engine Oil Temperature Sensor Malfunction
  • Fuel Rail/System Pressure - Too High
  • Crankshaft Position Sensor B Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
  • Crankshaft Position Sensor A Circuit Low Input

What To Check After Fixing 04499 Code

  • Inspect all the connections secondary air injection system switching valve bank 1, stuck open
  • 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