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VW Code 04549

04549 Description And Summary :

Diameter in engine barometric pressure sensor 'a', circuit mechanic will need to check all electrical connections in the camshaft sensor secondary air injection system air flow/pressure sensor bank 2, circuit and wait then load signal from alternator terminal df, open or short to b+ will delay your vw fault.

04549 Possible Causes:

04549 vw fault code may be caused by one or more of the following:

  • Ambient Air Temperature Sensor Circuit Low
  • Cold Start Injector 1 Malfunction
  • Manifold Absolute Pressure/Barometric Pressure Circuit High Input
  • Cylinder 10 Contribution/balance Fault
  • Engine Shutoff Solenoid Malfunction
  • Engine Oil Temperature Sensor Malfunction

What To Check After Fixing 04549 Code

  • Inspect all the connections coolant degassing valve, control circuit high
  • 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