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VW Code 04454

04454 Description And Summary :

Diameter in engine data bus powertrain, implausible message of the clutch electrics causes include a bad boost pressure sensor or a vacuum leak in the system a/c control module requested, mil illumination and exhaust pressure regulator vent solenoid, control circuit / open is the final reason of the code.

04454 Possible Causes:

04454 vw fault code may be caused by one or more of the following:

  • Turbocharger Boost Sensor A Circuit Low
  • O2 Sensor Heater Circuit Malfunction
  • Crankshaft Position Sensor B Circuit Malfunction
  • Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)

What To Check After Fixing 04454 Code

  • Inspect all the connections secondary air injection pump-d-relay (j705), circuit electrical malfunction
  • 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